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Finding the Fourth Proportional to 556,493.40, 834,375.60 and 219,330.90

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Solution

The fourth proportional to 556,493.40, 834,375.60 and 219,330.90 is: 328,852.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,493.40 : 834,375.60 = 219,330.90 : x
  2. Step 2: Convert to fraction form
    556,493.40/834,375.60 = 219,330.90/x
  3. Step 3: Cross multiply
    556,493.40x = 834,375.60 × 219,330.90
  4. Step 4: Simplify right side
    556,493.40x = 183,004,351,286.04
  5. Step 5: Solve for x
    x = 183,004,351,286.04/556,493.40
  6. Step 6: Final answer
    x = 328,852.69

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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.