Home / 549,576.19-823,146.25-422,279.43

Finding the Fourth Proportional to 549,576.19, 823,146.25 and 422,279.43

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Solution

The fourth proportional to 549,576.19, 823,146.25 and 422,279.43 is: 632,483.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,576.19 : 823,146.25 = 422,279.43 : x
  2. Step 2: Convert to fraction form
    549,576.19/823,146.25 = 422,279.43/x
  3. Step 3: Cross multiply
    549,576.19x = 823,146.25 × 422,279.43
  4. Step 4: Simplify right side
    549,576.19x = 347,597,725,905.91
  5. Step 5: Solve for x
    x = 347,597,725,905.91/549,576.19
  6. Step 6: Final answer
    x = 632,483.23

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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.