Home / 1,215,039.71-1,676,685.32-725,561.55

Finding the Fourth Proportional to 1,215,039.71, 1,676,685.32 and 725,561.55

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Solution

The fourth proportional to 1,215,039.71, 1,676,685.32 and 725,561.55 is: 1,001,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,039.71 : 1,676,685.32 = 725,561.55 : x
  2. Step 2: Convert to fraction form
    1,215,039.71/1,676,685.32 = 725,561.55/x
  3. Step 3: Cross multiply
    1,215,039.71x = 1,676,685.32 × 725,561.55
  4. Step 4: Simplify right side
    1,215,039.71x = 1,216,538,396,013.64
  5. Step 5: Solve for x
    x = 1,216,538,396,013.64/1,215,039.71
  6. Step 6: Final answer
    x = 1,001,233.45

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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.