Home / 1,253,359.83-1,729,657.60-680,400

Finding the Fourth Proportional to 1,253,359.83, 1,729,657.60 and 680,400

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Solution

The fourth proportional to 1,253,359.83, 1,729,657.60 and 680,400 is: 938,963.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,359.83 : 1,729,657.60 = 680,400 : x
  2. Step 2: Convert to fraction form
    1,253,359.83/1,729,657.60 = 680,400/x
  3. Step 3: Cross multiply
    1,253,359.83x = 1,729,657.60 × 680,400
  4. Step 4: Simplify right side
    1,253,359.83x = 1,176,859,029,339
  5. Step 5: Solve for x
    x = 1,176,859,029,339/1,253,359.83
  6. Step 6: Final answer
    x = 938,963.42

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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.