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Finding the Fourth Proportional to 636,124, 876,926 and 444,542.56

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Solution

The fourth proportional to 636,124, 876,926 and 444,542.56 is: 612,822.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,124 : 876,926 = 444,542.56 : x
  2. Step 2: Convert to fraction form
    636,124/876,926 = 444,542.56/x
  3. Step 3: Cross multiply
    636,124x = 876,926 × 444,542.56
  4. Step 4: Simplify right side
    636,124x = 389,830,928,970.56
  5. Step 5: Solve for x
    x = 389,830,928,970.56/636,124
  6. Step 6: Final answer
    x = 612,822.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.