Home / 698,741.03-964,296.82-392,913.69

Finding the Fourth Proportional to 698,741.03, 964,296.82 and 392,913.69

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Solution

The fourth proportional to 698,741.03, 964,296.82 and 392,913.69 is: 542,240.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,741.03 : 964,296.82 = 392,913.69 : x
  2. Step 2: Convert to fraction form
    698,741.03/964,296.82 = 392,913.69/x
  3. Step 3: Cross multiply
    698,741.03x = 964,296.82 × 392,913.69
  4. Step 4: Simplify right side
    698,741.03x = 378,885,419,781.57
  5. Step 5: Solve for x
    x = 378,885,419,781.57/698,741.03
  6. Step 6: Final answer
    x = 542,240.12

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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.