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Finding the Fourth Proportional to 559,479.10, 839,217.88 and 259,795.80

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Solution

The fourth proportional to 559,479.10, 839,217.88 and 259,795.80 is: 389,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,479.10 : 839,217.88 = 259,795.80 : x
  2. Step 2: Convert to fraction form
    559,479.10/839,217.88 = 259,795.80/x
  3. Step 3: Cross multiply
    559,479.10x = 839,217.88 × 259,795.80
  4. Step 4: Simplify right side
    559,479.10x = 218,025,280,508.90
  5. Step 5: Solve for x
    x = 218,025,280,508.90/559,479.10
  6. Step 6: Final answer
    x = 389,693.35

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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.