Home / 1,253,480.90-1,729,910.70-709,712.51

Finding the Fourth Proportional to 1,253,480.90, 1,729,910.70 and 709,712.51

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Solution

The fourth proportional to 1,253,480.90, 1,729,910.70 and 709,712.51 is: 979,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,480.90 : 1,729,910.70 = 709,712.51 : x
  2. Step 2: Convert to fraction form
    1,253,480.90/1,729,910.70 = 709,712.51/x
  3. Step 3: Cross multiply
    1,253,480.90x = 1,729,910.70 × 709,712.51
  4. Step 4: Simplify right side
    1,253,480.90x = 1,227,739,256,323.30
  5. Step 5: Solve for x
    x = 1,227,739,256,323.30/1,253,480.90
  6. Step 6: Final answer
    x = 979,463.88

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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.