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Finding the Fourth Proportional to 698,750.22, 964,309.52 and 392,922.88

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Solution

The fourth proportional to 698,750.22, 964,309.52 and 392,922.88 is: 542,252.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,750.22 : 964,309.52 = 392,922.88 : x
  2. Step 2: Convert to fraction form
    698,750.22/964,309.52 = 392,922.88/x
  3. Step 3: Cross multiply
    698,750.22x = 964,309.52 × 392,922.88
  4. Step 4: Simplify right side
    698,750.22x = 378,899,269,434.43
  5. Step 5: Solve for x
    x = 378,899,269,434.43/698,750.22
  6. Step 6: Final answer
    x = 542,252.81

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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.