Home / 549,273.20-823,218.60-487,065.20

Finding the Fourth Proportional to 549,273.20, 823,218.60 and 487,065.20

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Solution

The fourth proportional to 549,273.20, 823,218.60 and 487,065.20 is: 729,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,273.20 : 823,218.60 = 487,065.20 : x
  2. Step 2: Convert to fraction form
    549,273.20/823,218.60 = 487,065.20/x
  3. Step 3: Cross multiply
    549,273.20x = 823,218.60 × 487,065.20
  4. Step 4: Simplify right side
    549,273.20x = 400,961,132,052.72
  5. Step 5: Solve for x
    x = 400,961,132,052.72/549,273.20
  6. Step 6: Final answer
    x = 729,984.88

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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.