Home / 693,630.20-1,040,022.90-272,401.40

Finding the Fourth Proportional to 693,630.20, 1,040,022.90 and 272,401.40

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Solution

The fourth proportional to 693,630.20, 1,040,022.90 and 272,401.40 is: 408,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,630.20 : 1,040,022.90 = 272,401.40 : x
  2. Step 2: Convert to fraction form
    693,630.20/1,040,022.90 = 272,401.40/x
  3. Step 3: Cross multiply
    693,630.20x = 1,040,022.90 × 272,401.40
  4. Step 4: Simplify right side
    693,630.20x = 283,303,693,992.06
  5. Step 5: Solve for x
    x = 283,303,693,992.06/693,630.20
  6. Step 6: Final answer
    x = 408,436.22

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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.