Home / 811,865.10-1,120,346.19-449,304.24

Finding the Fourth Proportional to 811,865.10, 1,120,346.19 and 449,304.24

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Solution

The fourth proportional to 811,865.10, 1,120,346.19 and 449,304.24 is: 620,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,865.10 : 1,120,346.19 = 449,304.24 : x
  2. Step 2: Convert to fraction form
    811,865.10/1,120,346.19 = 449,304.24/x
  3. Step 3: Cross multiply
    811,865.10x = 1,120,346.19 × 449,304.24
  4. Step 4: Simplify right side
    811,865.10x = 503,376,293,434.85
  5. Step 5: Solve for x
    x = 503,376,293,434.85/811,865.10
  6. Step 6: Final answer
    x = 620,024.55

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1.5x scale

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.