Home / 1,229,006.25-1,696,129.65-677,829.78

Finding the Fourth Proportional to 1,229,006.25, 1,696,129.65 and 677,829.78

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Solution

The fourth proportional to 1,229,006.25, 1,696,129.65 and 677,829.78 is: 935,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,006.25 : 1,696,129.65 = 677,829.78 : x
  2. Step 2: Convert to fraction form
    1,229,006.25/1,696,129.65 = 677,829.78/x
  3. Step 3: Cross multiply
    1,229,006.25x = 1,696,129.65 × 677,829.78
  4. Step 4: Simplify right side
    1,229,006.25x = 1,149,687,187,510.98
  5. Step 5: Solve for x
    x = 1,149,687,187,510.98/1,229,006.25
  6. Step 6: Final answer
    x = 935,460.81

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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.