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Finding the Fourth Proportional to 492,057.15, 738,085.73 and 487,391.55

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Solution

The fourth proportional to 492,057.15, 738,085.73 and 487,391.55 is: 731,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,057.15 : 738,085.73 = 487,391.55 : x
  2. Step 2: Convert to fraction form
    492,057.15/738,085.73 = 487,391.55/x
  3. Step 3: Cross multiply
    492,057.15x = 738,085.73 × 487,391.55
  4. Step 4: Simplify right side
    492,057.15x = 359,736,747,977.58
  5. Step 5: Solve for x
    x = 359,736,747,977.58/492,057.15
  6. Step 6: Final answer
    x = 731,087.33

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Similar ratio
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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.