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Finding the Fourth Proportional to 479,549.15, 661,679.03 and 275,560.66

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Solution

The fourth proportional to 479,549.15, 661,679.03 and 275,560.66 is: 380,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,549.15 : 661,679.03 = 275,560.66 : x
  2. Step 2: Convert to fraction form
    479,549.15/661,679.03 = 275,560.66/x
  3. Step 3: Cross multiply
    479,549.15x = 661,679.03 × 275,560.66
  4. Step 4: Simplify right side
    479,549.15x = 182,332,710,214.96
  5. Step 5: Solve for x
    x = 182,332,710,214.96/479,549.15
  6. Step 6: Final answer
    x = 380,216.94

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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.