Home / 1,278,870.93-1,917,891.14-425,713.46

Finding the Fourth Proportional to 1,278,870.93, 1,917,891.14 and 425,713.46

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Solution

The fourth proportional to 1,278,870.93, 1,917,891.14 and 425,713.46 is: 638,431.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,870.93 : 1,917,891.14 = 425,713.46 : x
  2. Step 2: Convert to fraction form
    1,278,870.93/1,917,891.14 = 425,713.46/x
  3. Step 3: Cross multiply
    1,278,870.93x = 1,917,891.14 × 425,713.46
  4. Step 4: Simplify right side
    1,278,870.93x = 816,472,061,394.72
  5. Step 5: Solve for x
    x = 816,472,061,394.72/1,278,870.93
  6. Step 6: Final answer
    x = 638,431.95

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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.