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Finding the Fourth Proportional to 397,407.60, 596,111.40 and 361,249.20

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Solution

The fourth proportional to 397,407.60, 596,111.40 and 361,249.20 is: 541,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,407.60 : 596,111.40 = 361,249.20 : x
  2. Step 2: Convert to fraction form
    397,407.60/596,111.40 = 361,249.20/x
  3. Step 3: Cross multiply
    397,407.60x = 596,111.40 × 361,249.20
  4. Step 4: Simplify right side
    397,407.60x = 215,344,766,360.88
  5. Step 5: Solve for x
    x = 215,344,766,360.88/397,407.60
  6. Step 6: Final answer
    x = 541,873.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.