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Finding the Fourth Proportional to 491,579.58, 678,397.98 and 273,796.30

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Solution

The fourth proportional to 491,579.58, 678,397.98 and 273,796.30 is: 377,849.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,579.58 : 678,397.98 = 273,796.30 : x
  2. Step 2: Convert to fraction form
    491,579.58/678,397.98 = 273,796.30/x
  3. Step 3: Cross multiply
    491,579.58x = 678,397.98 × 273,796.30
  4. Step 4: Simplify right side
    491,579.58x = 185,742,858,726.21
  5. Step 5: Solve for x
    x = 185,742,858,726.21/491,579.58
  6. Step 6: Final answer
    x = 377,849.01

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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.