Home / 811,849.32-1,120,354.24-449,298.18

Finding the Fourth Proportional to 811,849.32, 1,120,354.24 and 449,298.18

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Solution

The fourth proportional to 811,849.32, 1,120,354.24 and 449,298.18 is: 620,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,849.32 : 1,120,354.24 = 449,298.18 : x
  2. Step 2: Convert to fraction form
    811,849.32/1,120,354.24 = 449,298.18/x
  3. Step 3: Cross multiply
    811,849.32x = 1,120,354.24 × 449,298.18
  4. Step 4: Simplify right side
    811,849.32x = 503,373,120,987.28
  5. Step 5: Solve for x
    x = 503,373,120,987.28/811,849.32
  6. Step 6: Final answer
    x = 620,032.69

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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.