Home / 1,306,155.80-1,802,331.78-725,299.95

Finding the Fourth Proportional to 1,306,155.80, 1,802,331.78 and 725,299.95

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Solution

The fourth proportional to 1,306,155.80, 1,802,331.78 and 725,299.95 is: 1,000,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,155.80 : 1,802,331.78 = 725,299.95 : x
  2. Step 2: Convert to fraction form
    1,306,155.80/1,802,331.78 = 725,299.95/x
  3. Step 3: Cross multiply
    1,306,155.80x = 1,802,331.78 × 725,299.95
  4. Step 4: Simplify right side
    1,306,155.80x = 1,307,231,151,072.14
  5. Step 5: Solve for x
    x = 1,307,231,151,072.14/1,306,155.80
  6. Step 6: Final answer
    x = 1,000,823.30

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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.