Home / 439,246.40-658,977.60-123,699.20

Finding the Fourth Proportional to 439,246.40, 658,977.60 and 123,699.20

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Solution

The fourth proportional to 439,246.40, 658,977.60 and 123,699.20 is: 185,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,246.40 : 658,977.60 = 123,699.20 : x
  2. Step 2: Convert to fraction form
    439,246.40/658,977.60 = 123,699.20/x
  3. Step 3: Cross multiply
    439,246.40x = 658,977.60 × 123,699.20
  4. Step 4: Simplify right side
    439,246.40x = 81,515,001,937.92
  5. Step 5: Solve for x
    x = 81,515,001,937.92/439,246.40
  6. Step 6: Final answer
    x = 185,579.21

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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.