Home / 678,151.08-1,016,604.54-303,969.96

Finding the Fourth Proportional to 678,151.08, 1,016,604.54 and 303,969.96

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Solution

The fourth proportional to 678,151.08, 1,016,604.54 and 303,969.96 is: 455,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,151.08 : 1,016,604.54 = 303,969.96 : x
  2. Step 2: Convert to fraction form
    678,151.08/1,016,604.54 = 303,969.96/x
  3. Step 3: Cross multiply
    678,151.08x = 1,016,604.54 × 303,969.96
  4. Step 4: Simplify right side
    678,151.08x = 309,017,241,359.62
  5. Step 5: Solve for x
    x = 309,017,241,359.62/678,151.08
  6. Step 6: Final answer
    x = 455,676.10

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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.