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Finding the Fourth Proportional to 568,123.80, 784,027.13 and 313,491.39

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Solution

The fourth proportional to 568,123.80, 784,027.13 and 313,491.39 is: 432,627.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,123.80 : 784,027.13 = 313,491.39 : x
  2. Step 2: Convert to fraction form
    568,123.80/784,027.13 = 313,491.39/x
  3. Step 3: Cross multiply
    568,123.80x = 784,027.13 × 313,491.39
  4. Step 4: Simplify right side
    568,123.80x = 245,785,753,213.95
  5. Step 5: Solve for x
    x = 245,785,753,213.95/568,123.80
  6. Step 6: Final answer
    x = 432,627.10

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1.5x scale

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.