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Finding the Fourth Proportional to 610,692.73, 915,104.96 and 326,423.74

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Solution

The fourth proportional to 610,692.73, 915,104.96 and 326,423.74 is: 489,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,692.73 : 915,104.96 = 326,423.74 : x
  2. Step 2: Convert to fraction form
    610,692.73/915,104.96 = 326,423.74/x
  3. Step 3: Cross multiply
    610,692.73x = 915,104.96 × 326,423.74
  4. Step 4: Simplify right side
    610,692.73x = 298,711,982,555.78
  5. Step 5: Solve for x
    x = 298,711,982,555.78/610,692.73
  6. Step 6: Final answer
    x = 489,136.30

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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.