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Finding the Fourth Proportional to 672,704.60, 928,315.08 and 366,781.57

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Solution

The fourth proportional to 672,704.60, 928,315.08 and 366,781.57 is: 506,149.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,704.60 : 928,315.08 = 366,781.57 : x
  2. Step 2: Convert to fraction form
    672,704.60/928,315.08 = 366,781.57/x
  3. Step 3: Cross multiply
    672,704.60x = 928,315.08 × 366,781.57
  4. Step 4: Simplify right side
    672,704.60x = 340,488,860,176.29
  5. Step 5: Solve for x
    x = 340,488,860,176.29/672,704.60
  6. Step 6: Final answer
    x = 506,149.15

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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.