Home / 3,561,490.41-5,342,197.13-865,818.78

Finding the Fourth Proportional to 3,561,490.41, 5,342,197.13 and 865,818.78

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Solution

The fourth proportional to 3,561,490.41, 5,342,197.13 and 865,818.78 is: 1,298,718.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,561,490.41 : 5,342,197.13 = 865,818.78 : x
  2. Step 2: Convert to fraction form
    3,561,490.41/5,342,197.13 = 865,818.78/x
  3. Step 3: Cross multiply
    3,561,490.41x = 5,342,197.13 × 865,818.78
  4. Step 4: Simplify right side
    3,561,490.41x = 4,625,374,601,616.10
  5. Step 5: Solve for x
    x = 4,625,374,601,616.10/3,561,490.41
  6. Step 6: Final answer
    x = 1,298,718.81

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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.