Home / 439,404.40-659,214.60-123,857.20

Finding the Fourth Proportional to 439,404.40, 659,214.60 and 123,857.20

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Solution

The fourth proportional to 439,404.40, 659,214.60 and 123,857.20 is: 185,816.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,404.40 : 659,214.60 = 123,857.20 : x
  2. Step 2: Convert to fraction form
    439,404.40/659,214.60 = 123,857.20/x
  3. Step 3: Cross multiply
    439,404.40x = 659,214.60 × 123,857.20
  4. Step 4: Simplify right side
    439,404.40x = 81,648,474,555.12
  5. Step 5: Solve for x
    x = 81,648,474,555.12/439,404.40
  6. Step 6: Final answer
    x = 185,816.24

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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.