Home / 1,388,983.64-2,081,951.38-715,100.90

Finding the Fourth Proportional to 1,388,983.64, 2,081,951.38 and 715,100.90

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Solution

The fourth proportional to 1,388,983.64, 2,081,951.38 and 715,100.90 is: 1,071,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,983.64 : 2,081,951.38 = 715,100.90 : x
  2. Step 2: Convert to fraction form
    1,388,983.64/2,081,951.38 = 715,100.90/x
  3. Step 3: Cross multiply
    1,388,983.64x = 2,081,951.38 × 715,100.90
  4. Step 4: Simplify right side
    1,388,983.64x = 1,488,805,305,594.24
  5. Step 5: Solve for x
    x = 1,488,805,305,594.24/1,388,983.64
  6. Step 6: Final answer
    x = 1,071,866.70

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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.