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Finding the Fourth Proportional to 477,172.76, 715,768.37 and 381,961.04

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Solution

The fourth proportional to 477,172.76, 715,768.37 and 381,961.04 is: 572,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,172.76 : 715,768.37 = 381,961.04 : x
  2. Step 2: Convert to fraction form
    477,172.76/715,768.37 = 381,961.04/x
  3. Step 3: Cross multiply
    477,172.76x = 715,768.37 × 381,961.04
  4. Step 4: Simplify right side
    477,172.76x = 273,395,625,515.66
  5. Step 5: Solve for x
    x = 273,395,625,515.66/477,172.76
  6. Step 6: Final answer
    x = 572,948.94

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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.