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Finding the Fourth Proportional to 607,978.48, 912,013.56 and 181,480.62

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Solution

The fourth proportional to 607,978.48, 912,013.56 and 181,480.62 is: 272,234.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,978.48 : 912,013.56 = 181,480.62 : x
  2. Step 2: Convert to fraction form
    607,978.48/912,013.56 = 181,480.62/x
  3. Step 3: Cross multiply
    607,978.48x = 912,013.56 × 181,480.62
  4. Step 4: Simplify right side
    607,978.48x = 165,512,786,317.21
  5. Step 5: Solve for x
    x = 165,512,786,317.21/607,978.48
  6. Step 6: Final answer
    x = 272,234.61

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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.