Home / 1,030,780.28-1,422,428.60-571,889.97

Finding the Fourth Proportional to 1,030,780.28, 1,422,428.60 and 571,889.97

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Solution

The fourth proportional to 1,030,780.28, 1,422,428.60 and 571,889.97 is: 789,181.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,780.28 : 1,422,428.60 = 571,889.97 : x
  2. Step 2: Convert to fraction form
    1,030,780.28/1,422,428.60 = 571,889.97/x
  3. Step 3: Cross multiply
    1,030,780.28x = 1,422,428.60 × 571,889.97
  4. Step 4: Simplify right side
    1,030,780.28x = 813,472,647,593.99
  5. Step 5: Solve for x
    x = 813,472,647,593.99/1,030,780.28
  6. Step 6: Final answer
    x = 789,181.42

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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.