Home / 1,016,282.67-1,398,949.26-878,398.38

Finding the Fourth Proportional to 1,016,282.67, 1,398,949.26 and 878,398.38

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Solution

The fourth proportional to 1,016,282.67, 1,398,949.26 and 878,398.38 is: 1,209,146.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,282.67 : 1,398,949.26 = 878,398.38 : x
  2. Step 2: Convert to fraction form
    1,016,282.67/1,398,949.26 = 878,398.38/x
  3. Step 3: Cross multiply
    1,016,282.67x = 1,398,949.26 × 878,398.38
  4. Step 4: Simplify right side
    1,016,282.67x = 1,228,834,763,686.20
  5. Step 5: Solve for x
    x = 1,228,834,763,686.20/1,016,282.67
  6. Step 6: Final answer
    x = 1,209,146.63

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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.