Home / 693,651.40-1,040,217.90-272,840.20

Finding the Fourth Proportional to 693,651.40, 1,040,217.90 and 272,840.20

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Solution

The fourth proportional to 693,651.40, 1,040,217.90 and 272,840.20 is: 409,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,651.40 : 1,040,217.90 = 272,840.20 : x
  2. Step 2: Convert to fraction form
    693,651.40/1,040,217.90 = 272,840.20/x
  3. Step 3: Cross multiply
    693,651.40x = 1,040,217.90 × 272,840.20
  4. Step 4: Simplify right side
    693,651.40x = 283,813,259,879.58
  5. Step 5: Solve for x
    x = 283,813,259,879.58/693,651.40
  6. Step 6: Final answer
    x = 409,158.35

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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.