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Finding the Fourth Proportional to 559,479.60, 839,218.63 and 259,796.30

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Solution

The fourth proportional to 559,479.60, 839,218.63 and 259,796.30 is: 389,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,479.60 : 839,218.63 = 259,796.30 : x
  2. Step 2: Convert to fraction form
    559,479.60/839,218.63 = 259,796.30/x
  3. Step 3: Cross multiply
    559,479.60x = 839,218.63 × 259,796.30
  4. Step 4: Simplify right side
    559,479.60x = 218,025,894,965.07
  5. Step 5: Solve for x
    x = 218,025,894,965.07/559,479.60
  6. Step 6: Final answer
    x = 389,694.10

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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.