Home / 549,279.20-823,227.60-487,071.20

Finding the Fourth Proportional to 549,279.20, 823,227.60 and 487,071.20

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Solution

The fourth proportional to 549,279.20, 823,227.60 and 487,071.20 is: 729,993.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,279.20 : 823,227.60 = 487,071.20 : x
  2. Step 2: Convert to fraction form
    549,279.20/823,227.60 = 487,071.20/x
  3. Step 3: Cross multiply
    549,279.20x = 823,227.60 × 487,071.20
  4. Step 4: Simplify right side
    549,279.20x = 400,970,455,005.12
  5. Step 5: Solve for x
    x = 400,970,455,005.12/549,279.20
  6. Step 6: Final answer
    x = 729,993.88

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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.