Home / 724,896.40-1,087,344.60-538,272.40

Finding the Fourth Proportional to 724,896.40, 1,087,344.60 and 538,272.40

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Solution

The fourth proportional to 724,896.40, 1,087,344.60 and 538,272.40 is: 807,408.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,896.40 : 1,087,344.60 = 538,272.40 : x
  2. Step 2: Convert to fraction form
    724,896.40/1,087,344.60 = 538,272.40/x
  3. Step 3: Cross multiply
    724,896.40x = 1,087,344.60 × 538,272.40
  4. Step 4: Simplify right side
    724,896.40x = 585,287,587,469.04
  5. Step 5: Solve for x
    x = 585,287,587,469.04/724,896.40
  6. Step 6: Final answer
    x = 807,408.60

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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.