Home / 1,016,267.45-1,398,929.13-878,383.58

Finding the Fourth Proportional to 1,016,267.45, 1,398,929.13 and 878,383.58

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Solution

The fourth proportional to 1,016,267.45, 1,398,929.13 and 878,383.58 is: 1,209,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016,267.45 : 1,398,929.13 = 878,383.58 : x
  2. Step 2: Convert to fraction form
    1,016,267.45/1,398,929.13 = 878,383.58/x
  3. Step 3: Cross multiply
    1,016,267.45x = 1,398,929.13 × 878,383.58
  4. Step 4: Simplify right side
    1,016,267.45x = 1,228,796,370,381.04
  5. Step 5: Solve for x
    x = 1,228,796,370,381.04/1,016,267.45
  6. Step 6: Final answer
    x = 1,209,126.96

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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.