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Finding the Fourth Proportional to 458,777.85, 688,166.78 and 458,777.85

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Solution

The fourth proportional to 458,777.85, 688,166.78 and 458,777.85 is: 688,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,777.85 : 688,166.78 = 458,777.85 : x
  2. Step 2: Convert to fraction form
    458,777.85/688,166.78 = 458,777.85/x
  3. Step 3: Cross multiply
    458,777.85x = 688,166.78 × 458,777.85
  4. Step 4: Simplify right side
    458,777.85x = 315,715,673,475.93
  5. Step 5: Solve for x
    x = 315,715,673,475.93/458,777.85
  6. Step 6: Final answer
    x = 688,166.78

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Similar ratio
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1.5x scale

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.