Home / 1,016,281.17-1,398,947.19-878,396.90

Finding the Fourth Proportional to 1,016,281.17, 1,398,947.19 and 878,396.90

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Solution

The fourth proportional to 1,016,281.17, 1,398,947.19 and 878,396.90 is: 1,209,144.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,281.17 : 1,398,947.19 = 878,396.90 : x
  2. Step 2: Convert to fraction form
    1,016,281.17/1,398,947.19 = 878,396.90/x
  3. Step 3: Cross multiply
    1,016,281.17x = 1,398,947.19 × 878,396.90
  4. Step 4: Simplify right side
    1,016,281.17x = 1,228,830,867,964.98
  5. Step 5: Solve for x
    x = 1,228,830,867,964.98/1,016,281.17
  6. Step 6: Final answer
    x = 1,209,144.58

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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.