Home / 749,315.60-1,121,640.60-725,987.60

Finding the Fourth Proportional to 749,315.60, 1,121,640.60 and 725,987.60

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Solution

The fourth proportional to 749,315.60, 1,121,640.60 and 725,987.60 is: 1,086,721.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,315.60 : 1,121,640.60 = 725,987.60 : x
  2. Step 2: Convert to fraction form
    749,315.60/1,121,640.60 = 725,987.60/x
  3. Step 3: Cross multiply
    749,315.60x = 1,121,640.60 × 725,987.60
  4. Step 4: Simplify right side
    749,315.60x = 814,297,167,256.56
  5. Step 5: Solve for x
    x = 814,297,167,256.56/749,315.60
  6. Step 6: Final answer
    x = 1,086,721.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.