Home / 725,256.04-1,086,388.96-424,825.78

Finding the Fourth Proportional to 725,256.04, 1,086,388.96 and 424,825.78

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Solution

The fourth proportional to 725,256.04, 1,086,388.96 and 424,825.78 is: 636,362.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,256.04 : 1,086,388.96 = 424,825.78 : x
  2. Step 2: Convert to fraction form
    725,256.04/1,086,388.96 = 424,825.78/x
  3. Step 3: Cross multiply
    725,256.04x = 1,086,388.96 × 424,825.78
  4. Step 4: Simplify right side
    725,256.04x = 461,526,037,315.39
  5. Step 5: Solve for x
    x = 461,526,037,315.39/725,256.04
  6. Step 6: Final answer
    x = 636,362.90

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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.