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Finding the Fourth Proportional to 568,098.88, 783,987.68 and 313,473.76

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Solution

The fourth proportional to 568,098.88, 783,987.68 and 313,473.76 is: 432,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,098.88 : 783,987.68 = 313,473.76 : x
  2. Step 2: Convert to fraction form
    568,098.88/783,987.68 = 313,473.76/x
  3. Step 3: Cross multiply
    568,098.88x = 783,987.68 × 313,473.76
  4. Step 4: Simplify right side
    568,098.88x = 245,759,565,843.28
  5. Step 5: Solve for x
    x = 245,759,565,843.28/568,098.88
  6. Step 6: Final answer
    x = 432,599.98

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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.