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Finding the Fourth Proportional to 490,314.52, 676,630.02 and 275,450.06

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Solution

The fourth proportional to 490,314.52, 676,630.02 and 275,450.06 is: 380,118.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,314.52 : 676,630.02 = 275,450.06 : x
  2. Step 2: Convert to fraction form
    490,314.52/676,630.02 = 275,450.06/x
  3. Step 3: Cross multiply
    490,314.52x = 676,630.02 × 275,450.06
  4. Step 4: Simplify right side
    490,314.52x = 186,377,779,606.80
  5. Step 5: Solve for x
    x = 186,377,779,606.80/490,314.52
  6. Step 6: Final answer
    x = 380,118.83

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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.