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Finding the Fourth Proportional to 672,659.82, 928,269.96 and 386,197.38

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Solution

The fourth proportional to 672,659.82, 928,269.96 and 386,197.38 is: 532,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,659.82 : 928,269.96 = 386,197.38 : x
  2. Step 2: Convert to fraction form
    672,659.82/928,269.96 = 386,197.38/x
  3. Step 3: Cross multiply
    672,659.82x = 928,269.96 × 386,197.38
  4. Step 4: Simplify right side
    672,659.82x = 358,495,426,484.71
  5. Step 5: Solve for x
    x = 358,495,426,484.71/672,659.82
  6. Step 6: Final answer
    x = 532,952.04

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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.