Home / 987,764.56-1,363,087.10-579,859.90

Finding the Fourth Proportional to 987,764.56, 1,363,087.10 and 579,859.90

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Solution

The fourth proportional to 987,764.56, 1,363,087.10 and 579,859.90 is: 800,190.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,764.56 : 1,363,087.10 = 579,859.90 : x
  2. Step 2: Convert to fraction form
    987,764.56/1,363,087.10 = 579,859.90/x
  3. Step 3: Cross multiply
    987,764.56x = 1,363,087.10 × 579,859.90
  4. Step 4: Simplify right side
    987,764.56x = 790,399,549,497.29
  5. Step 5: Solve for x
    x = 790,399,549,497.29/987,764.56
  6. Step 6: Final answer
    x = 800,190.23

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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.