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Finding the Fourth Proportional to 622,896.60, 933,761.70 and 487,885.80

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Solution

The fourth proportional to 622,896.60, 933,761.70 and 487,885.80 is: 731,371.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,896.60 : 933,761.70 = 487,885.80 : x
  2. Step 2: Convert to fraction form
    622,896.60/933,761.70 = 487,885.80/x
  3. Step 3: Cross multiply
    622,896.60x = 933,761.70 × 487,885.80
  4. Step 4: Simplify right side
    622,896.60x = 455,569,074,013.86
  5. Step 5: Solve for x
    x = 455,569,074,013.86/622,896.60
  6. Step 6: Final answer
    x = 731,371.91

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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.