Home / 515,780.73-773,634.47-136,693.04

Finding the Fourth Proportional to 515,780.73, 773,634.47 and 136,693.04

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Solution

The fourth proportional to 515,780.73, 773,634.47 and 136,693.04 is: 205,029.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,780.73 : 773,634.47 = 136,693.04 : x
  2. Step 2: Convert to fraction form
    515,780.73/773,634.47 = 136,693.04/x
  3. Step 3: Cross multiply
    515,780.73x = 773,634.47 × 136,693.04
  4. Step 4: Simplify right side
    515,780.73x = 105,750,443,001.45
  5. Step 5: Solve for x
    x = 105,750,443,001.45/515,780.73
  6. Step 6: Final answer
    x = 205,029.84

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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.