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Finding the Fourth Proportional to 610,613.67, 842,747.78 and 338,769.15

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Solution

The fourth proportional to 610,613.67, 842,747.78 and 338,769.15 is: 467,557.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,613.67 : 842,747.78 = 338,769.15 : x
  2. Step 2: Convert to fraction form
    610,613.67/842,747.78 = 338,769.15/x
  3. Step 3: Cross multiply
    610,613.67x = 842,747.78 × 338,769.15
  4. Step 4: Simplify right side
    610,613.67x = 285,496,946,781.61
  5. Step 5: Solve for x
    x = 285,496,946,781.61/610,613.67
  6. Step 6: Final answer
    x = 467,557.41

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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.