Home / 747,663.42-1,121,218.11-267,816.45

Finding the Fourth Proportional to 747,663.42, 1,121,218.11 and 267,816.45

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Solution

The fourth proportional to 747,663.42, 1,121,218.11 and 267,816.45 is: 401,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,663.42 : 1,121,218.11 = 267,816.45 : x
  2. Step 2: Convert to fraction form
    747,663.42/1,121,218.11 = 267,816.45/x
  3. Step 3: Cross multiply
    747,663.42x = 1,121,218.11 × 267,816.45
  4. Step 4: Simplify right side
    747,663.42x = 300,280,653,895.91
  5. Step 5: Solve for x
    x = 300,280,653,895.91/747,663.42
  6. Step 6: Final answer
    x = 401,625.45

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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.