Home / 1,191,122.13-1,643,747.28-647,256.61

Finding the Fourth Proportional to 1,191,122.13, 1,643,747.28 and 647,256.61

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Solution

The fourth proportional to 1,191,122.13, 1,643,747.28 and 647,256.61 is: 893,213.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,122.13 : 1,643,747.28 = 647,256.61 : x
  2. Step 2: Convert to fraction form
    1,191,122.13/1,643,747.28 = 647,256.61/x
  3. Step 3: Cross multiply
    1,191,122.13x = 1,643,747.28 × 647,256.61
  4. Step 4: Simplify right side
    1,191,122.13x = 1,063,926,296,400.03
  5. Step 5: Solve for x
    x = 1,063,926,296,400.03/1,191,122.13
  6. Step 6: Final answer
    x = 893,213.44

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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.