Home / 1,278,569.28-1,917,354.96-479,414.88

Finding the Fourth Proportional to 1,278,569.28, 1,917,354.96 and 479,414.88

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Solution

The fourth proportional to 1,278,569.28, 1,917,354.96 and 479,414.88 is: 718,935.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,569.28 : 1,917,354.96 = 479,414.88 : x
  2. Step 2: Convert to fraction form
    1,278,569.28/1,917,354.96 = 479,414.88/x
  3. Step 3: Cross multiply
    1,278,569.28x = 1,917,354.96 × 479,414.88
  4. Step 4: Simplify right side
    1,278,569.28x = 919,208,498,065.81
  5. Step 5: Solve for x
    x = 919,208,498,065.81/1,278,569.28
  6. Step 6: Final answer
    x = 718,935.23

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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.