Home / 769,905.79-1,153,859.92-342,833.92

Finding the Fourth Proportional to 769,905.79, 1,153,859.92 and 342,833.92

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Solution

The fourth proportional to 769,905.79, 1,153,859.92 and 342,833.92 is: 513,806.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,905.79 : 1,153,859.92 = 342,833.92 : x
  2. Step 2: Convert to fraction form
    769,905.79/1,153,859.92 = 342,833.92/x
  3. Step 3: Cross multiply
    769,905.79x = 1,153,859.92 × 342,833.92
  4. Step 4: Simplify right side
    769,905.79x = 395,582,319,504.49
  5. Step 5: Solve for x
    x = 395,582,319,504.49/769,905.79
  6. Step 6: Final answer
    x = 513,806.14

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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.