Home / 628,005.40-942,065.70-207,282.20

Finding the Fourth Proportional to 628,005.40, 942,065.70 and 207,282.20

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Solution

The fourth proportional to 628,005.40, 942,065.70 and 207,282.20 is: 310,942.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,005.40 : 942,065.70 = 207,282.20 : x
  2. Step 2: Convert to fraction form
    628,005.40/942,065.70 = 207,282.20/x
  3. Step 3: Cross multiply
    628,005.40x = 942,065.70 × 207,282.20
  4. Step 4: Simplify right side
    628,005.40x = 195,273,450,840.54
  5. Step 5: Solve for x
    x = 195,273,450,840.54/628,005.40
  6. Step 6: Final answer
    x = 310,942.31

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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.