Home / 549,856.20-823,710.54-261,257.12

Finding the Fourth Proportional to 549,856.20, 823,710.54 and 261,257.12

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Solution

The fourth proportional to 549,856.20, 823,710.54 and 261,257.12 is: 391,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,856.20 : 823,710.54 = 261,257.12 : x
  2. Step 2: Convert to fraction form
    549,856.20/823,710.54 = 261,257.12/x
  3. Step 3: Cross multiply
    549,856.20x = 823,710.54 × 261,257.12
  4. Step 4: Simplify right side
    549,856.20x = 215,200,243,394.05
  5. Step 5: Solve for x
    x = 215,200,243,394.05/549,856.20
  6. Step 6: Final answer
    x = 391,375.50

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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.