Home / 811,846.32-1,120,350.10-449,295.18

Finding the Fourth Proportional to 811,846.32, 1,120,350.10 and 449,295.18

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Solution

The fourth proportional to 811,846.32, 1,120,350.10 and 449,295.18 is: 620,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,846.32 : 1,120,350.10 = 449,295.18 : x
  2. Step 2: Convert to fraction form
    811,846.32/1,120,350.10 = 449,295.18/x
  3. Step 3: Cross multiply
    811,846.32x = 1,120,350.10 × 449,295.18
  4. Step 4: Simplify right side
    811,846.32x = 503,367,891,994.29
  5. Step 5: Solve for x
    x = 503,367,891,994.29/811,846.32
  6. Step 6: Final answer
    x = 620,028.55

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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.