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Finding the Fourth Proportional to 439,807.41, 659,722.59 and 119,961.90

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Solution

The fourth proportional to 439,807.41, 659,722.59 and 119,961.90 is: 179,945.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,807.41 : 659,722.59 = 119,961.90 : x
  2. Step 2: Convert to fraction form
    439,807.41/659,722.59 = 119,961.90/x
  3. Step 3: Cross multiply
    439,807.41x = 659,722.59 × 119,961.90
  4. Step 4: Simplify right side
    439,807.41x = 79,141,575,369.32
  5. Step 5: Solve for x
    x = 79,141,575,369.32/439,807.41
  6. Step 6: Final answer
    x = 179,945.98

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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.