Home / 778,100.20-1,166,502.30-329,165.80

Finding the Fourth Proportional to 778,100.20, 1,166,502.30 and 329,165.80

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Solution

The fourth proportional to 778,100.20, 1,166,502.30 and 329,165.80 is: 493,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,100.20 : 1,166,502.30 = 329,165.80 : x
  2. Step 2: Convert to fraction form
    778,100.20/1,166,502.30 = 329,165.80/x
  3. Step 3: Cross multiply
    778,100.20x = 1,166,502.30 × 329,165.80
  4. Step 4: Simplify right side
    778,100.20x = 383,972,662,781.34
  5. Step 5: Solve for x
    x = 383,972,662,781.34/778,100.20
  6. Step 6: Final answer
    x = 493,474.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.