Home / 829,129.80-1,244,001.90-330,851.40

Finding the Fourth Proportional to 829,129.80, 1,244,001.90 and 330,851.40

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Solution

The fourth proportional to 829,129.80, 1,244,001.90 and 330,851.40 is: 496,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,129.80 : 1,244,001.90 = 330,851.40 : x
  2. Step 2: Convert to fraction form
    829,129.80/1,244,001.90 = 330,851.40/x
  3. Step 3: Cross multiply
    829,129.80x = 1,244,001.90 × 330,851.40
  4. Step 4: Simplify right side
    829,129.80x = 411,579,770,217.66
  5. Step 5: Solve for x
    x = 411,579,770,217.66/829,129.80
  6. Step 6: Final answer
    x = 496,399.68

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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.