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Finding the Fourth Proportional to 672,956.59, 928,520.37 and 382,545.21

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Solution

The fourth proportional to 672,956.59, 928,520.37 and 382,545.21 is: 527,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,956.59 : 928,520.37 = 382,545.21 : x
  2. Step 2: Convert to fraction form
    672,956.59/928,520.37 = 382,545.21/x
  3. Step 3: Cross multiply
    672,956.59x = 928,520.37 × 382,545.21
  4. Step 4: Simplify right side
    672,956.59x = 355,201,019,930.93
  5. Step 5: Solve for x
    x = 355,201,019,930.93/672,956.59
  6. Step 6: Final answer
    x = 527,821.59

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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.