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Finding the Fourth Proportional to 435,995.98, 653,987.48 and 120,445.90

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Solution

The fourth proportional to 435,995.98, 653,987.48 and 120,445.90 is: 180,667.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,995.98 : 653,987.48 = 120,445.90 : x
  2. Step 2: Convert to fraction form
    435,995.98/653,987.48 = 120,445.90/x
  3. Step 3: Cross multiply
    435,995.98x = 653,987.48 × 120,445.90
  4. Step 4: Simplify right side
    435,995.98x = 78,770,110,617.33
  5. Step 5: Solve for x
    x = 78,770,110,617.33/435,995.98
  6. Step 6: Final answer
    x = 180,667.06

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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.