Home / 918,310.64-1,375,175.06-580,331.66

Finding the Fourth Proportional to 918,310.64, 1,375,175.06 and 580,331.66

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Solution

The fourth proportional to 918,310.64, 1,375,175.06 and 580,331.66 is: 869,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,310.64 : 1,375,175.06 = 580,331.66 : x
  2. Step 2: Convert to fraction form
    918,310.64/1,375,175.06 = 580,331.66/x
  3. Step 3: Cross multiply
    918,310.64x = 1,375,175.06 × 580,331.66
  4. Step 4: Simplify right side
    918,310.64x = 798,057,625,360.40
  5. Step 5: Solve for x
    x = 798,057,625,360.40/918,310.64
  6. Step 6: Final answer
    x = 869,049.74

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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.