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Finding the Fourth Proportional to 443,705.22, 665,387.73 and 349,121.52

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Solution

The fourth proportional to 443,705.22, 665,387.73 and 349,121.52 is: 523,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,705.22 : 665,387.73 = 349,121.52 : x
  2. Step 2: Convert to fraction form
    443,705.22/665,387.73 = 349,121.52/x
  3. Step 3: Cross multiply
    443,705.22x = 665,387.73 × 349,121.52
  4. Step 4: Simplify right side
    443,705.22x = 232,301,175,686.95
  5. Step 5: Solve for x
    x = 232,301,175,686.95/443,705.22
  6. Step 6: Final answer
    x = 523,548.44

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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.