Home / 825,404.70-1,238,107.05-711,243.30

Finding the Fourth Proportional to 825,404.70, 1,238,107.05 and 711,243.30

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Solution

The fourth proportional to 825,404.70, 1,238,107.05 and 711,243.30 is: 1,066,864.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,404.70 : 1,238,107.05 = 711,243.30 : x
  2. Step 2: Convert to fraction form
    825,404.70/1,238,107.05 = 711,243.30/x
  3. Step 3: Cross multiply
    825,404.70x = 1,238,107.05 × 711,243.30
  4. Step 4: Simplify right side
    825,404.70x = 880,595,343,995.27
  5. Step 5: Solve for x
    x = 880,595,343,995.27/825,404.70
  6. Step 6: Final answer
    x = 1,066,864.95

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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.