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Finding the Fourth Proportional to 549,085.42, 759,183.76 and 480,906.90

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Solution

The fourth proportional to 549,085.42, 759,183.76 and 480,906.90 is: 664,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,085.42 : 759,183.76 = 480,906.90 : x
  2. Step 2: Convert to fraction form
    549,085.42/759,183.76 = 480,906.90/x
  3. Step 3: Cross multiply
    549,085.42x = 759,183.76 × 480,906.90
  4. Step 4: Simplify right side
    549,085.42x = 365,096,708,551.94
  5. Step 5: Solve for x
    x = 365,096,708,551.94/549,085.42
  6. Step 6: Final answer
    x = 664,917.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.