Home / 693,618.40-1,040,168.40-272,807.20

Finding the Fourth Proportional to 693,618.40, 1,040,168.40 and 272,807.20

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Solution

The fourth proportional to 693,618.40, 1,040,168.40 and 272,807.20 is: 409,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,618.40 : 1,040,168.40 = 272,807.20 : x
  2. Step 2: Convert to fraction form
    693,618.40/1,040,168.40 = 272,807.20/x
  3. Step 3: Cross multiply
    693,618.40x = 1,040,168.40 × 272,807.20
  4. Step 4: Simplify right side
    693,618.40x = 283,765,428,732.48
  5. Step 5: Solve for x
    x = 283,765,428,732.48/693,618.40
  6. Step 6: Final answer
    x = 409,108.85

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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.