Home / 1,432,231.47-1,976,439.96-787,651.65

Finding the Fourth Proportional to 1,432,231.47, 1,976,439.96 and 787,651.65

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Solution

The fourth proportional to 1,432,231.47, 1,976,439.96 and 787,651.65 is: 1,086,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,231.47 : 1,976,439.96 = 787,651.65 : x
  2. Step 2: Convert to fraction form
    1,432,231.47/1,976,439.96 = 787,651.65/x
  3. Step 3: Cross multiply
    1,432,231.47x = 1,976,439.96 × 787,651.65
  4. Step 4: Simplify right side
    1,432,231.47x = 1,556,746,195,619.93
  5. Step 5: Solve for x
    x = 1,556,746,195,619.93/1,432,231.47
  6. Step 6: Final answer
    x = 1,086,937.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.