Home / 869,723.61-1,304,708.42-270,745.21

Finding the Fourth Proportional to 869,723.61, 1,304,708.42 and 270,745.21

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Solution

The fourth proportional to 869,723.61, 1,304,708.42 and 270,745.21 is: 406,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,723.61 : 1,304,708.42 = 270,745.21 : x
  2. Step 2: Convert to fraction form
    869,723.61/1,304,708.42 = 270,745.21/x
  3. Step 3: Cross multiply
    869,723.61x = 1,304,708.42 × 270,745.21
  4. Step 4: Simplify right side
    869,723.61x = 353,243,555,161.67
  5. Step 5: Solve for x
    x = 353,243,555,161.67/869,723.61
  6. Step 6: Final answer
    x = 406,156.11

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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.