Home / 1,121,929.62-1,548,058.92-663,121.32

Finding the Fourth Proportional to 1,121,929.62, 1,548,058.92 and 663,121.32

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Solution

The fourth proportional to 1,121,929.62, 1,548,058.92 and 663,121.32 is: 914,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,929.62 : 1,548,058.92 = 663,121.32 : x
  2. Step 2: Convert to fraction form
    1,121,929.62/1,548,058.92 = 663,121.32/x
  3. Step 3: Cross multiply
    1,121,929.62x = 1,548,058.92 × 663,121.32
  4. Step 4: Simplify right side
    1,121,929.62x = 1,026,550,874,468.17
  5. Step 5: Solve for x
    x = 1,026,550,874,468.17/1,121,929.62
  6. Step 6: Final answer
    x = 914,986.87

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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.