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Finding the Fourth Proportional to 568,443.96, 784,425.11 and 323,405.64

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Solution

The fourth proportional to 568,443.96, 784,425.11 and 323,405.64 is: 446,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,443.96 : 784,425.11 = 323,405.64 : x
  2. Step 2: Convert to fraction form
    568,443.96/784,425.11 = 323,405.64/x
  3. Step 3: Cross multiply
    568,443.96x = 784,425.11 × 323,405.64
  4. Step 4: Simplify right side
    568,443.96x = 253,687,503,114.59
  5. Step 5: Solve for x
    x = 253,687,503,114.59/568,443.96
  6. Step 6: Final answer
    x = 446,284.10

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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.