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Finding the Fourth Proportional to 482,805.64, 724,208.46 and 257,483.42

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Solution

The fourth proportional to 482,805.64, 724,208.46 and 257,483.42 is: 386,225.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,805.64 : 724,208.46 = 257,483.42 : x
  2. Step 2: Convert to fraction form
    482,805.64/724,208.46 = 257,483.42/x
  3. Step 3: Cross multiply
    482,805.64x = 724,208.46 × 257,483.42
  4. Step 4: Simplify right side
    482,805.64x = 186,471,671,073.73
  5. Step 5: Solve for x
    x = 186,471,671,073.73/482,805.64
  6. Step 6: Final answer
    x = 386,225.13

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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.