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Finding the Fourth Proportional to 542,720.87, 749,000.67 and 301,081.22

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Solution

The fourth proportional to 542,720.87, 749,000.67 and 301,081.22 is: 415,517.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,720.87 : 749,000.67 = 301,081.22 : x
  2. Step 2: Convert to fraction form
    542,720.87/749,000.67 = 301,081.22/x
  3. Step 3: Cross multiply
    542,720.87x = 749,000.67 × 301,081.22
  4. Step 4: Simplify right side
    542,720.87x = 225,510,035,504.42
  5. Step 5: Solve for x
    x = 225,510,035,504.42/542,720.87
  6. Step 6: Final answer
    x = 415,517.53

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1.5x scale

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.