Home / 1,252,959.12-1,729,069.20-679,999.68

Finding the Fourth Proportional to 1,252,959.12, 1,729,069.20 and 679,999.68

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Solution

The fourth proportional to 1,252,959.12, 1,729,069.20 and 679,999.68 is: 938,391.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,959.12 : 1,729,069.20 = 679,999.68 : x
  2. Step 2: Convert to fraction form
    1,252,959.12/1,729,069.20 = 679,999.68/x
  3. Step 3: Cross multiply
    1,252,959.12x = 1,729,069.20 × 679,999.68
  4. Step 4: Simplify right side
    1,252,959.12x = 1,175,766,502,697.86
  5. Step 5: Solve for x
    x = 1,175,766,502,697.86/1,252,959.12
  6. Step 6: Final answer
    x = 938,391.75

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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.