Home / 876,083.20-1,313,559.81-343,658.05

Finding the Fourth Proportional to 876,083.20, 1,313,559.81 and 343,658.05

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Solution

The fourth proportional to 876,083.20, 1,313,559.81 and 343,658.05 is: 515,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,083.20 : 1,313,559.81 = 343,658.05 : x
  2. Step 2: Convert to fraction form
    876,083.20/1,313,559.81 = 343,658.05/x
  3. Step 3: Cross multiply
    876,083.20x = 1,313,559.81 × 343,658.05
  4. Step 4: Simplify right side
    876,083.20x = 451,415,399,579.07
  5. Step 5: Solve for x
    x = 451,415,399,579.07/876,083.20
  6. Step 6: Final answer
    x = 515,265.45

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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.