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Finding the Fourth Proportional to 452,518.56, 678,777.48 and 115,559.28

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Solution

The fourth proportional to 452,518.56, 678,777.48 and 115,559.28 is: 173,338.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,518.56 : 678,777.48 = 115,559.28 : x
  2. Step 2: Convert to fraction form
    452,518.56/678,777.48 = 115,559.28/x
  3. Step 3: Cross multiply
    452,518.56x = 678,777.48 × 115,559.28
  4. Step 4: Simplify right side
    452,518.56x = 78,439,036,869.01
  5. Step 5: Solve for x
    x = 78,439,036,869.01/452,518.56
  6. Step 6: Final answer
    x = 173,338.83

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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.