Home / 1,000,629.18-1,500,488.15-431,740.80

Finding the Fourth Proportional to 1,000,629.18, 1,500,488.15 and 431,740.80

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Solution

The fourth proportional to 1,000,629.18, 1,500,488.15 and 431,740.80 is: 647,414.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,629.18 : 1,500,488.15 = 431,740.80 : x
  2. Step 2: Convert to fraction form
    1,000,629.18/1,500,488.15 = 431,740.80/x
  3. Step 3: Cross multiply
    1,000,629.18x = 1,500,488.15 × 431,740.80
  4. Step 4: Simplify right side
    1,000,629.18x = 647,821,952,112.82
  5. Step 5: Solve for x
    x = 647,821,952,112.82/1,000,629.18
  6. Step 6: Final answer
    x = 647,414.61

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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.