Home / 754,903.40-1,132,355.10-418,980.20

Finding the Fourth Proportional to 754,903.40, 1,132,355.10 and 418,980.20

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Solution

The fourth proportional to 754,903.40, 1,132,355.10 and 418,980.20 is: 628,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,903.40 : 1,132,355.10 = 418,980.20 : x
  2. Step 2: Convert to fraction form
    754,903.40/1,132,355.10 = 418,980.20/x
  3. Step 3: Cross multiply
    754,903.40x = 1,132,355.10 × 418,980.20
  4. Step 4: Simplify right side
    754,903.40x = 474,434,366,269.02
  5. Step 5: Solve for x
    x = 474,434,366,269.02/754,903.40
  6. Step 6: Final answer
    x = 628,470.30

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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.