Home / 862,499.20-1,294,209.60-389,257.60

Finding the Fourth Proportional to 862,499.20, 1,294,209.60 and 389,257.60

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Solution

The fourth proportional to 862,499.20, 1,294,209.60 and 389,257.60 is: 584,094.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,499.20 : 1,294,209.60 = 389,257.60 : x
  2. Step 2: Convert to fraction form
    862,499.20/1,294,209.60 = 389,257.60/x
  3. Step 3: Cross multiply
    862,499.20x = 1,294,209.60 × 389,257.60
  4. Step 4: Simplify right side
    862,499.20x = 503,780,922,792.96
  5. Step 5: Solve for x
    x = 503,780,922,792.96/862,499.20
  6. Step 6: Final answer
    x = 584,094.37

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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.