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Finding the Fourth Proportional to 634,567.08, 875,700.20 and 392,801.52

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Solution

The fourth proportional to 634,567.08, 875,700.20 and 392,801.52 is: 542,064.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,567.08 : 875,700.20 = 392,801.52 : x
  2. Step 2: Convert to fraction form
    634,567.08/875,700.20 = 392,801.52/x
  3. Step 3: Cross multiply
    634,567.08x = 875,700.20 × 392,801.52
  4. Step 4: Simplify right side
    634,567.08x = 343,976,369,624.30
  5. Step 5: Solve for x
    x = 343,976,369,624.30/634,567.08
  6. Step 6: Final answer
    x = 542,064.63

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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.