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Finding the Fourth Proportional to 568,333.48, 784,288.21 and 310,201.87

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Solution

The fourth proportional to 568,333.48, 784,288.21 and 310,201.87 is: 428,072.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,333.48 : 784,288.21 = 310,201.87 : x
  2. Step 2: Convert to fraction form
    568,333.48/784,288.21 = 310,201.87/x
  3. Step 3: Cross multiply
    568,333.48x = 784,288.21 × 310,201.87
  4. Step 4: Simplify right side
    568,333.48x = 243,287,669,360.95
  5. Step 5: Solve for x
    x = 243,287,669,360.95/568,333.48
  6. Step 6: Final answer
    x = 428,072.04

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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.