Home / 1,420,427.92-1,960,897.52-876,863.32

Finding the Fourth Proportional to 1,420,427.92, 1,960,897.52 and 876,863.32

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Solution

The fourth proportional to 1,420,427.92, 1,960,897.52 and 876,863.32 is: 1,210,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,427.92 : 1,960,897.52 = 876,863.32 : x
  2. Step 2: Convert to fraction form
    1,420,427.92/1,960,897.52 = 876,863.32/x
  3. Step 3: Cross multiply
    1,420,427.92x = 1,960,897.52 × 876,863.32
  4. Step 4: Simplify right side
    1,420,427.92x = 1,719,439,109,566.97
  5. Step 5: Solve for x
    x = 1,719,439,109,566.97/1,420,427.92
  6. Step 6: Final answer
    x = 1,210,507.82

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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.