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Finding the Fourth Proportional to 568,122.30, 784,025.06 and 313,489.89

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Solution

The fourth proportional to 568,122.30, 784,025.06 and 313,489.89 is: 432,625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,122.30 : 784,025.06 = 313,489.89 : x
  2. Step 2: Convert to fraction form
    568,122.30/784,025.06 = 313,489.89/x
  3. Step 3: Cross multiply
    568,122.30x = 784,025.06 × 313,489.89
  4. Step 4: Simplify right side
    568,122.30x = 245,783,929,816.64
  5. Step 5: Solve for x
    x = 245,783,929,816.64/568,122.30
  6. Step 6: Final answer
    x = 432,625.03

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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.