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Finding the Fourth Proportional to 488,309.28, 673,909.20 and 273,445.44

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Solution

The fourth proportional to 488,309.28, 673,909.20 and 273,445.44 is: 377,378.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,309.28 : 673,909.20 = 273,445.44 : x
  2. Step 2: Convert to fraction form
    488,309.28/673,909.20 = 273,445.44/x
  3. Step 3: Cross multiply
    488,309.28x = 673,909.20 × 273,445.44
  4. Step 4: Simplify right side
    488,309.28x = 184,277,397,714.05
  5. Step 5: Solve for x
    x = 184,277,397,714.05/488,309.28
  6. Step 6: Final answer
    x = 377,378.45

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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.