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Finding the Fourth Proportional to 488,367.40, 732,551.10 and 311,001.70

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Solution

The fourth proportional to 488,367.40, 732,551.10 and 311,001.70 is: 466,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,367.40 : 732,551.10 = 311,001.70 : x
  2. Step 2: Convert to fraction form
    488,367.40/732,551.10 = 311,001.70/x
  3. Step 3: Cross multiply
    488,367.40x = 732,551.10 × 311,001.70
  4. Step 4: Simplify right side
    488,367.40x = 227,824,637,436.87
  5. Step 5: Solve for x
    x = 227,824,637,436.87/488,367.40
  6. Step 6: Final answer
    x = 466,502.55

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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.