Home / 1,009,932.43-1,392,446.16-646,759.21

Finding the Fourth Proportional to 1,009,932.43, 1,392,446.16 and 646,759.21

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Solution

The fourth proportional to 1,009,932.43, 1,392,446.16 and 646,759.21 is: 891,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,932.43 : 1,392,446.16 = 646,759.21 : x
  2. Step 2: Convert to fraction form
    1,009,932.43/1,392,446.16 = 646,759.21/x
  3. Step 3: Cross multiply
    1,009,932.43x = 1,392,446.16 × 646,759.21
  4. Step 4: Simplify right side
    1,009,932.43x = 900,577,368,213.11
  5. Step 5: Solve for x
    x = 900,577,368,213.11/1,009,932.43
  6. Step 6: Final answer
    x = 891,720.42

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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.