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Finding the Fourth Proportional to 482,799.90, 724,199.85 and 257,477.69

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Solution

The fourth proportional to 482,799.90, 724,199.85 and 257,477.69 is: 386,216.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,799.90 : 724,199.85 = 257,477.69 : x
  2. Step 2: Convert to fraction form
    482,799.90/724,199.85 = 257,477.69/x
  3. Step 3: Cross multiply
    482,799.90x = 724,199.85 × 257,477.69
  4. Step 4: Simplify right side
    482,799.90x = 186,465,306,226.56
  5. Step 5: Solve for x
    x = 186,465,306,226.56/482,799.90
  6. Step 6: Final answer
    x = 386,216.54

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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.