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Finding the Fourth Proportional to 440,397, 660,628.44 and 124,879.32

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Solution

The fourth proportional to 440,397, 660,628.44 and 124,879.32 is: 187,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,397 : 660,628.44 = 124,879.32 : x
  2. Step 2: Convert to fraction form
    440,397/660,628.44 = 124,879.32/x
  3. Step 3: Cross multiply
    440,397x = 660,628.44 × 124,879.32
  4. Step 4: Simplify right side
    440,397x = 82,498,830,359.86
  5. Step 5: Solve for x
    x = 82,498,830,359.86/440,397
  6. Step 6: Final answer
    x = 187,328.32

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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.