Home / 1,687,999.57-2,329,439.23-913,630.28

Finding the Fourth Proportional to 1,687,999.57, 2,329,439.23 and 913,630.28

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Solution

The fourth proportional to 1,687,999.57, 2,329,439.23 and 913,630.28 is: 1,260,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,999.57 : 2,329,439.23 = 913,630.28 : x
  2. Step 2: Convert to fraction form
    1,687,999.57/2,329,439.23 = 913,630.28/x
  3. Step 3: Cross multiply
    1,687,999.57x = 2,329,439.23 × 913,630.28
  4. Step 4: Simplify right side
    1,687,999.57x = 2,128,246,218,160.09
  5. Step 5: Solve for x
    x = 2,128,246,218,160.09/1,687,999.57
  6. Step 6: Final answer
    x = 1,260,809.69

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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.