Home / 1,330,791.90-1,996,479.45-432,080.70

Finding the Fourth Proportional to 1,330,791.90, 1,996,479.45 and 432,080.70

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Solution

The fourth proportional to 1,330,791.90, 1,996,479.45 and 432,080.70 is: 648,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,791.90 : 1,996,479.45 = 432,080.70 : x
  2. Step 2: Convert to fraction form
    1,330,791.90/1,996,479.45 = 432,080.70/x
  3. Step 3: Cross multiply
    1,330,791.90x = 1,996,479.45 × 432,080.70
  4. Step 4: Simplify right side
    1,330,791.90x = 862,640,238,291.62
  5. Step 5: Solve for x
    x = 862,640,238,291.62/1,330,791.90
  6. Step 6: Final answer
    x = 648,215.73

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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.