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Finding the Fourth Proportional to 479,024.88, 660,979.80 and 277,782

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Solution

The fourth proportional to 479,024.88, 660,979.80 and 277,782 is: 383,295.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,024.88 : 660,979.80 = 277,782 : x
  2. Step 2: Convert to fraction form
    479,024.88/660,979.80 = 277,782/x
  3. Step 3: Cross multiply
    479,024.88x = 660,979.80 × 277,782
  4. Step 4: Simplify right side
    479,024.88x = 183,608,290,803.60
  5. Step 5: Solve for x
    x = 183,608,290,803.60/479,024.88
  6. Step 6: Final answer
    x = 383,295.94

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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.