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Finding the Fourth Proportional to 999,686.30, 1,499,375.39 and 325,765.89

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Solution

The fourth proportional to 999,686.30, 1,499,375.39 and 325,765.89 is: 488,598.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,686.30 : 1,499,375.39 = 325,765.89 : x
  2. Step 2: Convert to fraction form
    999,686.30/1,499,375.39 = 325,765.89/x
  3. Step 3: Cross multiply
    999,686.30x = 1,499,375.39 × 325,765.89
  4. Step 4: Simplify right side
    999,686.30x = 488,445,356,738.62
  5. Step 5: Solve for x
    x = 488,445,356,738.62/999,686.30
  6. Step 6: Final answer
    x = 488,598.63

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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.