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Finding the Fourth Proportional to 549,387.36, 824,362.38 and 261,524.78

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Solution

The fourth proportional to 549,387.36, 824,362.38 and 261,524.78 is: 392,421.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,387.36 : 824,362.38 = 261,524.78 : x
  2. Step 2: Convert to fraction form
    549,387.36/824,362.38 = 261,524.78/x
  3. Step 3: Cross multiply
    549,387.36x = 824,362.38 × 261,524.78
  4. Step 4: Simplify right side
    549,387.36x = 215,591,185,617.50
  5. Step 5: Solve for x
    x = 215,591,185,617.50/549,387.36
  6. Step 6: Final answer
    x = 392,421.09

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1.5x scale

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.