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Finding the Fourth Proportional to 557,311.32, 769,104.72 and 327,883.68

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Solution

The fourth proportional to 557,311.32, 769,104.72 and 327,883.68 is: 452,488.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,311.32 : 769,104.72 = 327,883.68 : x
  2. Step 2: Convert to fraction form
    557,311.32/769,104.72 = 327,883.68/x
  3. Step 3: Cross multiply
    557,311.32x = 769,104.72 × 327,883.68
  4. Step 4: Simplify right side
    557,311.32x = 252,176,885,898.97
  5. Step 5: Solve for x
    x = 252,176,885,898.97/557,311.32
  6. Step 6: Final answer
    x = 452,488.36

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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.