Home / 678,732.24-1,016,922.36-411,933.72

Finding the Fourth Proportional to 678,732.24, 1,016,922.36 and 411,933.72

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Solution

The fourth proportional to 678,732.24, 1,016,922.36 and 411,933.72 is: 617,186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,732.24 : 1,016,922.36 = 411,933.72 : x
  2. Step 2: Convert to fraction form
    678,732.24/1,016,922.36 = 411,933.72/x
  3. Step 3: Cross multiply
    678,732.24x = 1,016,922.36 × 411,933.72
  4. Step 4: Simplify right side
    678,732.24x = 418,904,610,705.98
  5. Step 5: Solve for x
    x = 418,904,610,705.98/678,732.24
  6. Step 6: Final answer
    x = 617,186.85

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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.