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Finding the Fourth Proportional to 636,803.60, 878,796.24 and 364,866.02

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Solution

The fourth proportional to 636,803.60, 878,796.24 and 364,866.02 is: 503,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,803.60 : 878,796.24 = 364,866.02 : x
  2. Step 2: Convert to fraction form
    636,803.60/878,796.24 = 364,866.02/x
  3. Step 3: Cross multiply
    636,803.60x = 878,796.24 × 364,866.02
  4. Step 4: Simplify right side
    636,803.60x = 320,642,886,479.77
  5. Step 5: Solve for x
    x = 320,642,886,479.77/636,803.60
  6. Step 6: Final answer
    x = 503,519.27

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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.