Home / 1,330,367.90-1,995,843.45-431,656.70

Finding the Fourth Proportional to 1,330,367.90, 1,995,843.45 and 431,656.70

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Solution

The fourth proportional to 1,330,367.90, 1,995,843.45 and 431,656.70 is: 647,579.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,367.90 : 1,995,843.45 = 431,656.70 : x
  2. Step 2: Convert to fraction form
    1,330,367.90/1,995,843.45 = 431,656.70/x
  3. Step 3: Cross multiply
    1,330,367.90x = 1,995,843.45 × 431,656.70
  4. Step 4: Simplify right side
    1,330,367.90x = 861,519,197,343.62
  5. Step 5: Solve for x
    x = 861,519,197,343.62/1,330,367.90
  6. Step 6: Final answer
    x = 647,579.66

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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.