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Finding the Fourth Proportional to 556,449.82, 834,113.89 and 219,360.01

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Solution

The fourth proportional to 556,449.82, 834,113.89 and 219,360.01 is: 328,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,449.82 : 834,113.89 = 219,360.01 : x
  2. Step 2: Convert to fraction form
    556,449.82/834,113.89 = 219,360.01/x
  3. Step 3: Cross multiply
    556,449.82x = 834,113.89 × 219,360.01
  4. Step 4: Simplify right side
    556,449.82x = 182,971,231,251.54
  5. Step 5: Solve for x
    x = 182,971,231,251.54/556,449.82
  6. Step 6: Final answer
    x = 328,818.92

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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.