Home / 1,432,247.08-1,976,508.12-787,708.48

Finding the Fourth Proportional to 1,432,247.08, 1,976,508.12 and 787,708.48

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Solution

The fourth proportional to 1,432,247.08, 1,976,508.12 and 787,708.48 is: 1,087,041.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,247.08 : 1,976,508.12 = 787,708.48 : x
  2. Step 2: Convert to fraction form
    1,432,247.08/1,976,508.12 = 787,708.48/x
  3. Step 3: Cross multiply
    1,432,247.08x = 1,976,508.12 × 787,708.48
  4. Step 4: Simplify right side
    1,432,247.08x = 1,556,912,206,912.86
  5. Step 5: Solve for x
    x = 1,556,912,206,912.86/1,432,247.08
  6. Step 6: Final answer
    x = 1,087,041.63

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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.