Home / 1,857,878.59-2,786,149.22-643,125.15

Finding the Fourth Proportional to 1,857,878.59, 2,786,149.22 and 643,125.15

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Solution

The fourth proportional to 1,857,878.59, 2,786,149.22 and 643,125.15 is: 964,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,878.59 : 2,786,149.22 = 643,125.15 : x
  2. Step 2: Convert to fraction form
    1,857,878.59/2,786,149.22 = 643,125.15/x
  3. Step 3: Cross multiply
    1,857,878.59x = 2,786,149.22 × 643,125.15
  4. Step 4: Simplify right side
    1,857,878.59x = 1,791,842,635,034.88
  5. Step 5: Solve for x
    x = 1,791,842,635,034.88/1,857,878.59
  6. Step 6: Final answer
    x = 964,456.26

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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.