Home / 628,010.20-942,015.30-313,082.20

Finding the Fourth Proportional to 628,010.20, 942,015.30 and 313,082.20

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Solution

The fourth proportional to 628,010.20, 942,015.30 and 313,082.20 is: 469,623.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,010.20 : 942,015.30 = 313,082.20 : x
  2. Step 2: Convert to fraction form
    628,010.20/942,015.30 = 313,082.20/x
  3. Step 3: Cross multiply
    628,010.20x = 942,015.30 × 313,082.20
  4. Step 4: Simplify right side
    628,010.20x = 294,928,222,557.66
  5. Step 5: Solve for x
    x = 294,928,222,557.66/628,010.20
  6. Step 6: Final answer
    x = 469,623.30

Related Problems

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Half scale
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Double scale
Find fourth proportional to 628,011.20, 942,016.80 and 313,083.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.