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Finding the Fourth Proportional to 568,305.89, 784,260.52 and 313,655.25

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Solution

The fourth proportional to 568,305.89, 784,260.52 and 313,655.25 is: 432,843.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,305.89 : 784,260.52 = 313,655.25 : x
  2. Step 2: Convert to fraction form
    568,305.89/784,260.52 = 313,655.25/x
  3. Step 3: Cross multiply
    568,305.89x = 784,260.52 × 313,655.25
  4. Step 4: Simplify right side
    568,305.89x = 245,987,429,465.73
  5. Step 5: Solve for x
    x = 245,987,429,465.73/568,305.89
  6. Step 6: Final answer
    x = 432,843.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.