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Finding the Fourth Proportional to 457,953.60, 686,610.40 and 270,868.80

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Solution

The fourth proportional to 457,953.60, 686,610.40 and 270,868.80 is: 406,113.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,953.60 : 686,610.40 = 270,868.80 : x
  2. Step 2: Convert to fraction form
    457,953.60/686,610.40 = 270,868.80/x
  3. Step 3: Cross multiply
    457,953.60x = 686,610.40 × 270,868.80
  4. Step 4: Simplify right side
    457,953.60x = 185,981,335,115.52
  5. Step 5: Solve for x
    x = 185,981,335,115.52/457,953.60
  6. Step 6: Final answer
    x = 406,113.93

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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.