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Finding the Fourth Proportional to 670,331, 924,960.58 and 394,524.92

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Solution

The fourth proportional to 670,331, 924,960.58 and 394,524.92 is: 544,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,331 : 924,960.58 = 394,524.92 : x
  2. Step 2: Convert to fraction form
    670,331/924,960.58 = 394,524.92/x
  3. Step 3: Cross multiply
    670,331x = 924,960.58 × 394,524.92
  4. Step 4: Simplify right side
    670,331x = 364,919,998,827.65
  5. Step 5: Solve for x
    x = 364,919,998,827.65/670,331
  6. Step 6: Final answer
    x = 544,387.77

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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.