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Finding the Fourth Proportional to 673,649.56, 929,637.18 and 371,843.56

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Solution

The fourth proportional to 673,649.56, 929,637.18 and 371,843.56 is: 513,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,649.56 : 929,637.18 = 371,843.56 : x
  2. Step 2: Convert to fraction form
    673,649.56/929,637.18 = 371,843.56/x
  3. Step 3: Cross multiply
    673,649.56x = 929,637.18 × 371,843.56
  4. Step 4: Simplify right side
    673,649.56x = 345,679,598,519.56
  5. Step 5: Solve for x
    x = 345,679,598,519.56/673,649.56
  6. Step 6: Final answer
    x = 513,144.55

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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.