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Finding the Fourth Proportional to 461,324.96, 636,519.80 and 280,032.40

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Solution

The fourth proportional to 461,324.96, 636,519.80 and 280,032.40 is: 386,378.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,324.96 : 636,519.80 = 280,032.40 : x
  2. Step 2: Convert to fraction form
    461,324.96/636,519.80 = 280,032.40/x
  3. Step 3: Cross multiply
    461,324.96x = 636,519.80 × 280,032.40
  4. Step 4: Simplify right side
    461,324.96x = 178,246,167,241.52
  5. Step 5: Solve for x
    x = 178,246,167,241.52/461,324.96
  6. Step 6: Final answer
    x = 386,378.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.