Home / 693,257.40-1,040,031.90-393,492.60

Finding the Fourth Proportional to 693,257.40, 1,040,031.90 and 393,492.60

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Solution

The fourth proportional to 693,257.40, 1,040,031.90 and 393,492.60 is: 590,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,257.40 : 1,040,031.90 = 393,492.60 : x
  2. Step 2: Convert to fraction form
    693,257.40/1,040,031.90 = 393,492.60/x
  3. Step 3: Cross multiply
    693,257.40x = 1,040,031.90 × 393,492.60
  4. Step 4: Simplify right side
    693,257.40x = 409,244,856,413.94
  5. Step 5: Solve for x
    x = 409,244,856,413.94/693,257.40
  6. Step 6: Final answer
    x = 590,321.66

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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.