Home / 724,897.40-1,087,346.10-538,273.40

Finding the Fourth Proportional to 724,897.40, 1,087,346.10 and 538,273.40

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Solution

The fourth proportional to 724,897.40, 1,087,346.10 and 538,273.40 is: 807,410.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,897.40 : 1,087,346.10 = 538,273.40 : x
  2. Step 2: Convert to fraction form
    724,897.40/1,087,346.10 = 538,273.40/x
  3. Step 3: Cross multiply
    724,897.40x = 1,087,346.10 × 538,273.40
  4. Step 4: Simplify right side
    724,897.40x = 585,289,482,223.74
  5. Step 5: Solve for x
    x = 585,289,482,223.74/724,897.40
  6. Step 6: Final answer
    x = 807,410.10

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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.