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Finding the Fourth Proportional to 799,672.03, 1,199,718.34 and 287,388.88

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Solution

The fourth proportional to 799,672.03, 1,199,718.34 and 287,388.88 is: 431,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    799,672.03 : 1,199,718.34 = 287,388.88 : x
  2. Step 2: Convert to fraction form
    799,672.03/1,199,718.34 = 287,388.88/x
  3. Step 3: Cross multiply
    799,672.03x = 1,199,718.34 × 287,388.88
  4. Step 4: Simplify right side
    799,672.03x = 344,785,706,330.29
  5. Step 5: Solve for x
    x = 344,785,706,330.29/799,672.03
  6. Step 6: Final answer
    x = 431,158.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.