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Finding the Fourth Proportional to 487,956.70, 731,935.05 and 410,974.30

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Solution

The fourth proportional to 487,956.70, 731,935.05 and 410,974.30 is: 616,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,956.70 : 731,935.05 = 410,974.30 : x
  2. Step 2: Convert to fraction form
    487,956.70/731,935.05 = 410,974.30/x
  3. Step 3: Cross multiply
    487,956.70x = 731,935.05 × 410,974.30
  4. Step 4: Simplify right side
    487,956.70x = 300,806,494,819.22
  5. Step 5: Solve for x
    x = 300,806,494,819.22/487,956.70
  6. Step 6: Final answer
    x = 616,461.45

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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.