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Finding the Fourth Proportional to 488,474.78, 674,116.70 and 270,682.86

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Solution

The fourth proportional to 488,474.78, 674,116.70 and 270,682.86 is: 373,554.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,474.78 : 674,116.70 = 270,682.86 : x
  2. Step 2: Convert to fraction form
    488,474.78/674,116.70 = 270,682.86/x
  3. Step 3: Cross multiply
    488,474.78x = 674,116.70 × 270,682.86
  4. Step 4: Simplify right side
    488,474.78x = 182,471,840,909.21
  5. Step 5: Solve for x
    x = 182,471,840,909.21/488,474.78
  6. Step 6: Final answer
    x = 373,554.27

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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.