Home / 724,812.40-1,087,218.60-441,377.20

Finding the Fourth Proportional to 724,812.40, 1,087,218.60 and 441,377.20

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Solution

The fourth proportional to 724,812.40, 1,087,218.60 and 441,377.20 is: 662,065.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,812.40 : 1,087,218.60 = 441,377.20 : x
  2. Step 2: Convert to fraction form
    724,812.40/1,087,218.60 = 441,377.20/x
  3. Step 3: Cross multiply
    724,812.40x = 1,087,218.60 × 441,377.20
  4. Step 4: Simplify right side
    724,812.40x = 479,873,501,455.92
  5. Step 5: Solve for x
    x = 479,873,501,455.92/724,812.40
  6. Step 6: Final answer
    x = 662,065.80

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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.