Home / 685,726.10-1,027,609.11-385,576.76

Finding the Fourth Proportional to 685,726.10, 1,027,609.11 and 385,576.76

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Solution

The fourth proportional to 685,726.10, 1,027,609.11 and 385,576.76 is: 577,814.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,726.10 : 1,027,609.11 = 385,576.76 : x
  2. Step 2: Convert to fraction form
    685,726.10/1,027,609.11 = 385,576.76/x
  3. Step 3: Cross multiply
    685,726.10x = 1,027,609.11 × 385,576.76
  4. Step 4: Simplify right side
    685,726.10x = 396,222,186,884.57
  5. Step 5: Solve for x
    x = 396,222,186,884.57/685,726.10
  6. Step 6: Final answer
    x = 577,814.06

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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.