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Finding the Fourth Proportional to 568,105.60, 784,269.80 and 353,314.87

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Solution

The fourth proportional to 568,105.60, 784,269.80 and 353,314.87 is: 487,751.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,105.60 : 784,269.80 = 353,314.87 : x
  2. Step 2: Convert to fraction form
    568,105.60/784,269.80 = 353,314.87/x
  3. Step 3: Cross multiply
    568,105.60x = 784,269.80 × 353,314.87
  4. Step 4: Simplify right side
    568,105.60x = 277,094,182,431.93
  5. Step 5: Solve for x
    x = 277,094,182,431.93/568,105.60
  6. Step 6: Final answer
    x = 487,751.19

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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.