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Finding the Fourth Proportional to 672,165.90, 927,654.31 and 502,104.78

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Solution

The fourth proportional to 672,165.90, 927,654.31 and 502,104.78 is: 692,953.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,165.90 : 927,654.31 = 502,104.78 : x
  2. Step 2: Convert to fraction form
    672,165.90/927,654.31 = 502,104.78/x
  3. Step 3: Cross multiply
    672,165.90x = 927,654.31 × 502,104.78
  4. Step 4: Simplify right side
    672,165.90x = 465,779,663,238.60
  5. Step 5: Solve for x
    x = 465,779,663,238.60/672,165.90
  6. Step 6: Final answer
    x = 692,953.43

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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.