Home / 811,913.42-1,120,425.01-449,337.48

Finding the Fourth Proportional to 811,913.42, 1,120,425.01 and 449,337.48

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Solution

The fourth proportional to 811,913.42, 1,120,425.01 and 449,337.48 is: 620,077.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,913.42 : 1,120,425.01 = 449,337.48 : x
  2. Step 2: Convert to fraction form
    811,913.42/1,120,425.01 = 449,337.48/x
  3. Step 3: Cross multiply
    811,913.42x = 1,120,425.01 × 449,337.48
  4. Step 4: Simplify right side
    811,913.42x = 503,448,945,197.44
  5. Step 5: Solve for x
    x = 503,448,945,197.44/811,913.42
  6. Step 6: Final answer
    x = 620,077.13

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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.