Home / 769,819.75-1,155,052.61-343,061.63

Finding the Fourth Proportional to 769,819.75, 1,155,052.61 and 343,061.63

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Solution

The fourth proportional to 769,819.75, 1,155,052.61 and 343,061.63 is: 514,736.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,819.75 : 1,155,052.61 = 343,061.63 : x
  2. Step 2: Convert to fraction form
    769,819.75/1,155,052.61 = 343,061.63/x
  3. Step 3: Cross multiply
    769,819.75x = 1,155,052.61 × 343,061.63
  4. Step 4: Simplify right side
    769,819.75x = 396,254,229,249.71
  5. Step 5: Solve for x
    x = 396,254,229,249.71/769,819.75
  6. Step 6: Final answer
    x = 514,736.38

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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.