Home / 725,140.40-1,087,710.60-441,705.20

Finding the Fourth Proportional to 725,140.40, 1,087,710.60 and 441,705.20

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Solution

The fourth proportional to 725,140.40, 1,087,710.60 and 441,705.20 is: 662,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,140.40 : 1,087,710.60 = 441,705.20 : x
  2. Step 2: Convert to fraction form
    725,140.40/1,087,710.60 = 441,705.20/x
  3. Step 3: Cross multiply
    725,140.40x = 1,087,710.60 × 441,705.20
  4. Step 4: Simplify right side
    725,140.40x = 480,447,428,115.12
  5. Step 5: Solve for x
    x = 480,447,428,115.12/725,140.40
  6. Step 6: Final answer
    x = 662,557.80

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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.