Home / 457,925.16-687,004.38-142,384.80

Finding the Fourth Proportional to 457,925.16, 687,004.38 and 142,384.80

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Solution

The fourth proportional to 457,925.16, 687,004.38 and 142,384.80 is: 213,613.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,925.16 : 687,004.38 = 142,384.80 : x
  2. Step 2: Convert to fraction form
    457,925.16/687,004.38 = 142,384.80/x
  3. Step 3: Cross multiply
    457,925.16x = 687,004.38 × 142,384.80
  4. Step 4: Simplify right side
    457,925.16x = 97,818,981,245.42
  5. Step 5: Solve for x
    x = 97,818,981,245.42/457,925.16
  6. Step 6: Final answer
    x = 213,613.47

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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.