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Finding the Fourth Proportional to 556,449.58, 834,113.61 and 219,359.76

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Solution

The fourth proportional to 556,449.58, 834,113.61 and 219,359.76 is: 328,818.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,449.58 : 834,113.61 = 219,359.76 : x
  2. Step 2: Convert to fraction form
    556,449.58/834,113.61 = 219,359.76/x
  3. Step 3: Cross multiply
    556,449.58x = 834,113.61 × 219,359.76
  4. Step 4: Simplify right side
    556,449.58x = 182,970,958,174.41
  5. Step 5: Solve for x
    x = 182,970,958,174.41/556,449.58
  6. Step 6: Final answer
    x = 328,818.57

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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.