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Finding the Fourth Proportional to 486,272.55, 728,795.27 and 246,446.72

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Solution

The fourth proportional to 486,272.55, 728,795.27 and 246,446.72 is: 369,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,272.55 : 728,795.27 = 246,446.72 : x
  2. Step 2: Convert to fraction form
    486,272.55/728,795.27 = 246,446.72/x
  3. Step 3: Cross multiply
    486,272.55x = 728,795.27 × 246,446.72
  4. Step 4: Simplify right side
    486,272.55x = 179,609,198,966.80
  5. Step 5: Solve for x
    x = 179,609,198,966.80/486,272.55
  6. Step 6: Final answer
    x = 369,359.12

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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.