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Finding the Fourth Proportional to 636,803.59, 878,796.21 and 364,866.03

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Solution

The fourth proportional to 636,803.59, 878,796.21 and 364,866.03 is: 503,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,803.59 : 878,796.21 = 364,866.03 : x
  2. Step 2: Convert to fraction form
    636,803.59/878,796.21 = 364,866.03/x
  3. Step 3: Cross multiply
    636,803.59x = 878,796.21 × 364,866.03
  4. Step 4: Simplify right side
    636,803.59x = 320,642,884,321.75
  5. Step 5: Solve for x
    x = 320,642,884,321.75/636,803.59
  6. Step 6: Final answer
    x = 503,519.28

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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.