Home / 1,324,954.67-1,987,432.63-426,396.30

Finding the Fourth Proportional to 1,324,954.67, 1,987,432.63 and 426,396.30

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Solution

The fourth proportional to 1,324,954.67, 1,987,432.63 and 426,396.30 is: 639,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,954.67 : 1,987,432.63 = 426,396.30 : x
  2. Step 2: Convert to fraction form
    1,324,954.67/1,987,432.63 = 426,396.30/x
  3. Step 3: Cross multiply
    1,324,954.67x = 1,987,432.63 × 426,396.30
  4. Step 4: Simplify right side
    1,324,954.67x = 847,433,918,865.28
  5. Step 5: Solve for x
    x = 847,433,918,865.28/1,324,954.67
  6. Step 6: Final answer
    x = 639,594.65

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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.