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Finding the Fourth Proportional to 568,002.51, 783,789.01 and 313,337.30

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Solution

The fourth proportional to 568,002.51, 783,789.01 and 313,337.30 is: 432,375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,002.51 : 783,789.01 = 313,337.30 : x
  2. Step 2: Convert to fraction form
    568,002.51/783,789.01 = 313,337.30/x
  3. Step 3: Cross multiply
    568,002.51x = 783,789.01 × 313,337.30
  4. Step 4: Simplify right side
    568,002.51x = 245,590,327,460.79
  5. Step 5: Solve for x
    x = 245,590,327,460.79/568,002.51
  6. Step 6: Final answer
    x = 432,375.43

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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.