Home / 628,052.32-942,195.30-290,870.20

Finding the Fourth Proportional to 628,052.32, 942,195.30 and 290,870.20

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Solution

The fourth proportional to 628,052.32, 942,195.30 and 290,870.20 is: 436,359.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,052.32 : 942,195.30 = 290,870.20 : x
  2. Step 2: Convert to fraction form
    628,052.32/942,195.30 = 290,870.20/x
  3. Step 3: Cross multiply
    628,052.32x = 942,195.30 × 290,870.20
  4. Step 4: Simplify right side
    628,052.32x = 274,056,535,350.06
  5. Step 5: Solve for x
    x = 274,056,535,350.06/628,052.32
  6. Step 6: Final answer
    x = 436,359.40

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Double scale
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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.