Home / 1,253,484.15-1,729,915.19-709,715.76

Finding the Fourth Proportional to 1,253,484.15, 1,729,915.19 and 709,715.76

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Solution

The fourth proportional to 1,253,484.15, 1,729,915.19 and 709,715.76 is: 979,468.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,484.15 : 1,729,915.19 = 709,715.76 : x
  2. Step 2: Convert to fraction form
    1,253,484.15/1,729,915.19 = 709,715.76/x
  3. Step 3: Cross multiply
    1,253,484.15x = 1,729,915.19 × 709,715.76
  4. Step 4: Simplify right side
    1,253,484.15x = 1,227,748,073,806.39
  5. Step 5: Solve for x
    x = 1,227,748,073,806.39/1,253,484.15
  6. Step 6: Final answer
    x = 979,468.37

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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.