Home / 1,298,287.56-1,791,673.38-725,390.76

Finding the Fourth Proportional to 1,298,287.56, 1,791,673.38 and 725,390.76

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Solution

The fourth proportional to 1,298,287.56, 1,791,673.38 and 725,390.76 is: 1,001,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,287.56 : 1,791,673.38 = 725,390.76 : x
  2. Step 2: Convert to fraction form
    1,298,287.56/1,791,673.38 = 725,390.76/x
  3. Step 3: Cross multiply
    1,298,287.56x = 1,791,673.38 × 725,390.76
  4. Step 4: Simplify right side
    1,298,287.56x = 1,299,663,314,789.97
  5. Step 5: Solve for x
    x = 1,299,663,314,789.97/1,298,287.56
  6. Step 6: Final answer
    x = 1,001,059.67

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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.