Home / 1,432,069.76-1,976,288.32-787,448.96

Finding the Fourth Proportional to 1,432,069.76, 1,976,288.32 and 787,448.96

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Solution

The fourth proportional to 1,432,069.76, 1,976,288.32 and 787,448.96 is: 1,086,697.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,069.76 : 1,976,288.32 = 787,448.96 : x
  2. Step 2: Convert to fraction form
    1,432,069.76/1,976,288.32 = 787,448.96/x
  3. Step 3: Cross multiply
    1,432,069.76x = 1,976,288.32 × 787,448.96
  4. Step 4: Simplify right side
    1,432,069.76x = 1,556,226,182,244.15
  5. Step 5: Solve for x
    x = 1,556,226,182,244.15/1,432,069.76
  6. Step 6: Final answer
    x = 1,086,697.19

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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.