Home / 1,549,380.29-2,138,146.32-861,116.58

Finding the Fourth Proportional to 1,549,380.29, 2,138,146.32 and 861,116.58

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Solution

The fourth proportional to 1,549,380.29, 2,138,146.32 and 861,116.58 is: 1,188,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,380.29 : 2,138,146.32 = 861,116.58 : x
  2. Step 2: Convert to fraction form
    1,549,380.29/2,138,146.32 = 861,116.58/x
  3. Step 3: Cross multiply
    1,549,380.29x = 2,138,146.32 × 861,116.58
  4. Step 4: Simplify right side
    1,549,380.29x = 1,841,193,246,617.99
  5. Step 5: Solve for x
    x = 1,841,193,246,617.99/1,549,380.29
  6. Step 6: Final answer
    x = 1,188,341.73

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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.