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Finding the Fourth Proportional to 568,384.64, 784,370.88 and 313,735.88

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Solution

The fourth proportional to 568,384.64, 784,370.88 and 313,735.88 is: 432,955.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,384.64 : 784,370.88 = 313,735.88 : x
  2. Step 2: Convert to fraction form
    568,384.64/784,370.88 = 313,735.88/x
  3. Step 3: Cross multiply
    568,384.64x = 784,370.88 × 313,735.88
  4. Step 4: Simplify right side
    568,384.64x = 246,085,288,283.17
  5. Step 5: Solve for x
    x = 246,085,288,283.17/568,384.64
  6. Step 6: Final answer
    x = 432,955.56

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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.