Home / 1,030,780.38-1,422,428.73-571,890.06

Finding the Fourth Proportional to 1,030,780.38, 1,422,428.73 and 571,890.06

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Solution

The fourth proportional to 1,030,780.38, 1,422,428.73 and 571,890.06 is: 789,181.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,780.38 : 1,422,428.73 = 571,890.06 : x
  2. Step 2: Convert to fraction form
    1,030,780.38/1,422,428.73 = 571,890.06/x
  3. Step 3: Cross multiply
    1,030,780.38x = 1,422,428.73 × 571,890.06
  4. Step 4: Simplify right side
    1,030,780.38x = 813,472,851,745.42
  5. Step 5: Solve for x
    x = 813,472,851,745.42/1,030,780.38
  6. Step 6: Final answer
    x = 789,181.54

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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.