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Finding the Fourth Proportional to 999,686.05, 1,499,375.01 and 325,765.64

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Solution

The fourth proportional to 999,686.05, 1,499,375.01 and 325,765.64 is: 488,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,686.05 : 1,499,375.01 = 325,765.64 : x
  2. Step 2: Convert to fraction form
    999,686.05/1,499,375.01 = 325,765.64/x
  3. Step 3: Cross multiply
    999,686.05x = 1,499,375.01 × 325,765.64
  4. Step 4: Simplify right side
    999,686.05x = 488,444,859,732.66
  5. Step 5: Solve for x
    x = 488,444,859,732.66/999,686.05
  6. Step 6: Final answer
    x = 488,598.26

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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.