Home / 778,440.11-1,166,096.99-387,769.86

Finding the Fourth Proportional to 778,440.11, 1,166,096.99 and 387,769.86

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Solution

The fourth proportional to 778,440.11, 1,166,096.99 and 387,769.86 is: 580,876.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,440.11 : 1,166,096.99 = 387,769.86 : x
  2. Step 2: Convert to fraction form
    778,440.11/1,166,096.99 = 387,769.86/x
  3. Step 3: Cross multiply
    778,440.11x = 1,166,096.99 × 387,769.86
  4. Step 4: Simplify right side
    778,440.11x = 452,177,266,558.72
  5. Step 5: Solve for x
    x = 452,177,266,558.72/778,440.11
  6. Step 6: Final answer
    x = 580,876.11

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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.