Home / 1,272,067.20-1,908,282.24-430,859.52

Finding the Fourth Proportional to 1,272,067.20, 1,908,282.24 and 430,859.52

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Solution

The fourth proportional to 1,272,067.20, 1,908,282.24 and 430,859.52 is: 646,350.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,067.20 : 1,908,282.24 = 430,859.52 : x
  2. Step 2: Convert to fraction form
    1,272,067.20/1,908,282.24 = 430,859.52/x
  3. Step 3: Cross multiply
    1,272,067.20x = 1,908,282.24 × 430,859.52
  4. Step 4: Simplify right side
    1,272,067.20x = 822,201,569,950.93
  5. Step 5: Solve for x
    x = 822,201,569,950.93/1,272,067.20
  6. Step 6: Final answer
    x = 646,350.74

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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.