Home / 1,567,971.22-2,164,727.86-987,691.78

Finding the Fourth Proportional to 1,567,971.22, 2,164,727.86 and 987,691.78

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Solution

The fourth proportional to 1,567,971.22, 2,164,727.86 and 987,691.78 is: 1,363,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,567,971.22 : 2,164,727.86 = 987,691.78 : x
  2. Step 2: Convert to fraction form
    1,567,971.22/2,164,727.86 = 987,691.78/x
  3. Step 3: Cross multiply
    1,567,971.22x = 2,164,727.86 × 987,691.78
  4. Step 4: Simplify right side
    1,567,971.22x = 2,138,083,913,258.99
  5. Step 5: Solve for x
    x = 2,138,083,913,258.99/1,567,971.22
  6. Step 6: Final answer
    x = 1,363,598.95

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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.