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Finding the Fourth Proportional to 664,269.32, 916,713.78 and 362,479.88

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Solution

The fourth proportional to 664,269.32, 916,713.78 and 362,479.88 is: 500,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,269.32 : 916,713.78 = 362,479.88 : x
  2. Step 2: Convert to fraction form
    664,269.32/916,713.78 = 362,479.88/x
  3. Step 3: Cross multiply
    664,269.32x = 916,713.78 × 362,479.88
  4. Step 4: Simplify right side
    664,269.32x = 332,290,300,968.75
  5. Step 5: Solve for x
    x = 332,290,300,968.75/664,269.32
  6. Step 6: Final answer
    x = 500,234.30

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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.