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Finding the Fourth Proportional to 568,451.61, 784,477.49 and 323,422.86

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Solution

The fourth proportional to 568,451.61, 784,477.49 and 323,422.86 is: 446,331.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,451.61 : 784,477.49 = 323,422.86 : x
  2. Step 2: Convert to fraction form
    568,451.61/784,477.49 = 323,422.86/x
  3. Step 3: Cross multiply
    568,451.61x = 784,477.49 × 323,422.86
  4. Step 4: Simplify right side
    568,451.61x = 253,717,951,804.31
  5. Step 5: Solve for x
    x = 253,717,951,804.31/568,451.61
  6. Step 6: Final answer
    x = 446,331.66

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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.