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Finding the Fourth Proportional to 482,803.63, 724,205.45 and 257,481.42

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Solution

The fourth proportional to 482,803.63, 724,205.45 and 257,481.42 is: 386,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,803.63 : 724,205.45 = 257,481.42 : x
  2. Step 2: Convert to fraction form
    482,803.63/724,205.45 = 257,481.42/x
  3. Step 3: Cross multiply
    482,803.63x = 724,205.45 × 257,481.42
  4. Step 4: Simplify right side
    482,803.63x = 186,469,447,637.74
  5. Step 5: Solve for x
    x = 186,469,447,637.74/482,803.63
  6. Step 6: Final answer
    x = 386,222.13

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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.