Home / 1,253,089.18-1,729,264.32-680,129.47

Finding the Fourth Proportional to 1,253,089.18, 1,729,264.32 and 680,129.47

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Solution

The fourth proportional to 1,253,089.18, 1,729,264.32 and 680,129.47 is: 938,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,089.18 : 1,729,264.32 = 680,129.47 : x
  2. Step 2: Convert to fraction form
    1,253,089.18/1,729,264.32 = 680,129.47/x
  3. Step 3: Cross multiply
    1,253,089.18x = 1,729,264.32 × 680,129.47
  4. Step 4: Simplify right side
    1,253,089.18x = 1,176,123,625,451.51
  5. Step 5: Solve for x
    x = 1,176,123,625,451.51/1,253,089.18
  6. Step 6: Final answer
    x = 938,579.35

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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.