Home / 1,991,553.21-2,987,774.10-571,498.65

Finding the Fourth Proportional to 1,991,553.21, 2,987,774.10 and 571,498.65

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Solution

The fourth proportional to 1,991,553.21, 2,987,774.10 and 571,498.65 is: 857,375.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,553.21 : 2,987,774.10 = 571,498.65 : x
  2. Step 2: Convert to fraction form
    1,991,553.21/2,987,774.10 = 571,498.65/x
  3. Step 3: Cross multiply
    1,991,553.21x = 2,987,774.10 × 571,498.65
  4. Step 4: Simplify right side
    1,991,553.21x = 1,707,508,864,654.97
  5. Step 5: Solve for x
    x = 1,707,508,864,654.97/1,991,553.21
  6. Step 6: Final answer
    x = 857,375.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.