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Finding the Fourth Proportional to 568,484.82, 784,488.48 and 313,830.54

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Solution

The fourth proportional to 568,484.82, 784,488.48 and 313,830.54 is: 433,074.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,484.82 : 784,488.48 = 313,830.54 : x
  2. Step 2: Convert to fraction form
    568,484.82/784,488.48 = 313,830.54/x
  3. Step 3: Cross multiply
    568,484.82x = 784,488.48 × 313,830.54
  4. Step 4: Simplify right side
    568,484.82x = 246,196,443,302.18
  5. Step 5: Solve for x
    x = 246,196,443,302.18/568,484.82
  6. Step 6: Final answer
    x = 433,074.79

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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.