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Finding the Fourth Proportional to 556,448.82, 834,112.40 and 219,359.01

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Solution

The fourth proportional to 556,448.82, 834,112.40 and 219,359.01 is: 328,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,448.82 : 834,112.40 = 219,359.01 : x
  2. Step 2: Convert to fraction form
    556,448.82/834,112.40 = 219,359.01/x
  3. Step 3: Cross multiply
    556,448.82x = 834,112.40 × 219,359.01
  4. Step 4: Simplify right side
    556,448.82x = 182,970,069,195.93
  5. Step 5: Solve for x
    x = 182,970,069,195.93/556,448.82
  6. Step 6: Final answer
    x = 328,817.43

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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.