Home / 471,821.76-707,844.42-205,629.84

Finding the Fourth Proportional to 471,821.76, 707,844.42 and 205,629.84

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Solution

The fourth proportional to 471,821.76, 707,844.42 and 205,629.84 is: 308,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,821.76 : 707,844.42 = 205,629.84 : x
  2. Step 2: Convert to fraction form
    471,821.76/707,844.42 = 205,629.84/x
  3. Step 3: Cross multiply
    471,821.76x = 707,844.42 × 205,629.84
  4. Step 4: Simplify right side
    471,821.76x = 145,553,934,829.49
  5. Step 5: Solve for x
    x = 145,553,934,829.49/471,821.76
  6. Step 6: Final answer
    x = 308,493.48

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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.