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Finding the Fourth Proportional to 615,222.60, 923,818.05 and 465,631.80

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Solution

The fourth proportional to 615,222.60, 923,818.05 and 465,631.80 is: 699,192.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,222.60 : 923,818.05 = 465,631.80 : x
  2. Step 2: Convert to fraction form
    615,222.60/923,818.05 = 465,631.80/x
  3. Step 3: Cross multiply
    615,222.60x = 923,818.05 × 465,631.80
  4. Step 4: Simplify right side
    615,222.60x = 430,159,061,493.99
  5. Step 5: Solve for x
    x = 430,159,061,493.99/615,222.60
  6. Step 6: Final answer
    x = 699,192.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.