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Finding the Fourth Proportional to 549,497.20, 824,245.80 and 309,364.60

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Solution

The fourth proportional to 549,497.20, 824,245.80 and 309,364.60 is: 464,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,497.20 : 824,245.80 = 309,364.60 : x
  2. Step 2: Convert to fraction form
    549,497.20/824,245.80 = 309,364.60/x
  3. Step 3: Cross multiply
    549,497.20x = 824,245.80 × 309,364.60
  4. Step 4: Simplify right side
    549,497.20x = 254,992,472,218.68
  5. Step 5: Solve for x
    x = 254,992,472,218.68/549,497.20
  6. Step 6: Final answer
    x = 464,046.90

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Similar ratio
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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.