Home / 776,747.28-1,071,911.40-454,519.26

Finding the Fourth Proportional to 776,747.28, 1,071,911.40 and 454,519.26

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Solution

The fourth proportional to 776,747.28, 1,071,911.40 and 454,519.26 is: 627,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,747.28 : 1,071,911.40 = 454,519.26 : x
  2. Step 2: Convert to fraction form
    776,747.28/1,071,911.40 = 454,519.26/x
  3. Step 3: Cross multiply
    776,747.28x = 1,071,911.40 × 454,519.26
  4. Step 4: Simplify right side
    776,747.28x = 487,204,376,313.56
  5. Step 5: Solve for x
    x = 487,204,376,313.56/776,747.28
  6. Step 6: Final answer
    x = 627,236.67

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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.