Home / 1,191,065.49-1,643,672.46-647,207.79

Finding the Fourth Proportional to 1,191,065.49, 1,643,672.46 and 647,207.79

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Solution

The fourth proportional to 1,191,065.49, 1,643,672.46 and 647,207.79 is: 893,147.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,065.49 : 1,643,672.46 = 647,207.79 : x
  2. Step 2: Convert to fraction form
    1,191,065.49/1,643,672.46 = 647,207.79/x
  3. Step 3: Cross multiply
    1,191,065.49x = 1,643,672.46 × 647,207.79
  4. Step 4: Simplify right side
    1,191,065.49x = 1,063,797,620,320.46
  5. Step 5: Solve for x
    x = 1,063,797,620,320.46/1,191,065.49
  6. Step 6: Final answer
    x = 893,147.88

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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.