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Finding the Fourth Proportional to 674,545.60, 930,885.15 and 368,634.93

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Solution

The fourth proportional to 674,545.60, 930,885.15 and 368,634.93 is: 508,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,545.60 : 930,885.15 = 368,634.93 : x
  2. Step 2: Convert to fraction form
    674,545.60/930,885.15 = 368,634.93/x
  3. Step 3: Cross multiply
    674,545.60x = 930,885.15 × 368,634.93
  4. Step 4: Simplify right side
    674,545.60x = 343,156,782,108.29
  5. Step 5: Solve for x
    x = 343,156,782,108.29/674,545.60
  6. Step 6: Final answer
    x = 508,722.88

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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.