Home / 831,011.28-1,245,532.77-381,353.15

Finding the Fourth Proportional to 831,011.28, 1,245,532.77 and 381,353.15

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Solution

The fourth proportional to 831,011.28, 1,245,532.77 and 381,353.15 is: 571,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,011.28 : 1,245,532.77 = 381,353.15 : x
  2. Step 2: Convert to fraction form
    831,011.28/1,245,532.77 = 381,353.15/x
  3. Step 3: Cross multiply
    831,011.28x = 1,245,532.77 × 381,353.15
  4. Step 4: Simplify right side
    831,011.28x = 474,987,839,040.06
  5. Step 5: Solve for x
    x = 474,987,839,040.06/831,011.28
  6. Step 6: Final answer
    x = 571,578.09

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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.