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Finding the Fourth Proportional to 609,996.20, 913,751.81 and 289,175.66

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Solution

The fourth proportional to 609,996.20, 913,751.81 and 289,175.66 is: 433,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,996.20 : 913,751.81 = 289,175.66 : x
  2. Step 2: Convert to fraction form
    609,996.20/913,751.81 = 289,175.66/x
  3. Step 3: Cross multiply
    609,996.20x = 913,751.81 × 289,175.66
  4. Step 4: Simplify right side
    609,996.20x = 264,234,776,718.31
  5. Step 5: Solve for x
    x = 264,234,776,718.31/609,996.20
  6. Step 6: Final answer
    x = 433,174.47

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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.