Home / 1,189,932.43-1,643,458.79-802,078.92

Finding the Fourth Proportional to 1,189,932.43, 1,643,458.79 and 802,078.92

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Solution

The fourth proportional to 1,189,932.43, 1,643,458.79 and 802,078.92 is: 1,107,780.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,932.43 : 1,643,458.79 = 802,078.92 : x
  2. Step 2: Convert to fraction form
    1,189,932.43/1,643,458.79 = 802,078.92/x
  3. Step 3: Cross multiply
    1,189,932.43x = 1,643,458.79 × 802,078.92
  4. Step 4: Simplify right side
    1,189,932.43x = 1,318,183,651,347.71
  5. Step 5: Solve for x
    x = 1,318,183,651,347.71/1,189,932.43
  6. Step 6: Final answer
    x = 1,107,780.26

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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.