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Finding the Fourth Proportional to 436,744.32, 654,726.60 and 170,442.78

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Solution

The fourth proportional to 436,744.32, 654,726.60 and 170,442.78 is: 255,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,744.32 : 654,726.60 = 170,442.78 : x
  2. Step 2: Convert to fraction form
    436,744.32/654,726.60 = 170,442.78/x
  3. Step 3: Cross multiply
    436,744.32x = 654,726.60 × 170,442.78
  4. Step 4: Simplify right side
    436,744.32x = 111,593,421,843.95
  5. Step 5: Solve for x
    x = 111,593,421,843.95/436,744.32
  6. Step 6: Final answer
    x = 255,512.02

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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.