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Finding the Fourth Proportional to 568,224.54, 784,168.70 and 310,115.61

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Solution

The fourth proportional to 568,224.54, 784,168.70 and 310,115.61 is: 427,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,224.54 : 784,168.70 = 310,115.61 : x
  2. Step 2: Convert to fraction form
    568,224.54/784,168.70 = 310,115.61/x
  3. Step 3: Cross multiply
    568,224.54x = 784,168.70 × 310,115.61
  4. Step 4: Simplify right side
    568,224.54x = 243,182,953,192.83
  5. Step 5: Solve for x
    x = 243,182,953,192.83/568,224.54
  6. Step 6: Final answer
    x = 427,969.82

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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.