Home / 692,143.20-1,038,409.20-337,168.80

Finding the Fourth Proportional to 692,143.20, 1,038,409.20 and 337,168.80

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Solution

The fourth proportional to 692,143.20, 1,038,409.20 and 337,168.80 is: 505,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,143.20 : 1,038,409.20 = 337,168.80 : x
  2. Step 2: Convert to fraction form
    692,143.20/1,038,409.20 = 337,168.80/x
  3. Step 3: Cross multiply
    692,143.20x = 1,038,409.20 × 337,168.80
  4. Step 4: Simplify right side
    692,143.20x = 350,119,183,872.96
  5. Step 5: Solve for x
    x = 350,119,183,872.96/692,143.20
  6. Step 6: Final answer
    x = 505,847.90

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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.