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Finding the Fourth Proportional to 610,729.80, 915,665.48 and 269,011.08

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Solution

The fourth proportional to 610,729.80, 915,665.48 and 269,011.08 is: 403,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,729.80 : 915,665.48 = 269,011.08 : x
  2. Step 2: Convert to fraction form
    610,729.80/915,665.48 = 269,011.08/x
  3. Step 3: Cross multiply
    610,729.80x = 915,665.48 × 269,011.08
  4. Step 4: Simplify right side
    610,729.80x = 246,324,159,693.52
  5. Step 5: Solve for x
    x = 246,324,159,693.52/610,729.80
  6. Step 6: Final answer
    x = 403,327.56

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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.