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Finding the Fourth Proportional to 559,870.70, 839,806.05 and 204,920.60

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Solution

The fourth proportional to 559,870.70, 839,806.05 and 204,920.60 is: 307,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,870.70 : 839,806.05 = 204,920.60 : x
  2. Step 2: Convert to fraction form
    559,870.70/839,806.05 = 204,920.60/x
  3. Step 3: Cross multiply
    559,870.70x = 839,806.05 × 204,920.60
  4. Step 4: Simplify right side
    559,870.70x = 172,093,559,649.63
  5. Step 5: Solve for x
    x = 172,093,559,649.63/559,870.70
  6. Step 6: Final answer
    x = 307,380.90

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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.