Home / 668,136.40-1,002,204.60-439,813.60

Finding the Fourth Proportional to 668,136.40, 1,002,204.60 and 439,813.60

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Solution

The fourth proportional to 668,136.40, 1,002,204.60 and 439,813.60 is: 659,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,136.40 : 1,002,204.60 = 439,813.60 : x
  2. Step 2: Convert to fraction form
    668,136.40/1,002,204.60 = 439,813.60/x
  3. Step 3: Cross multiply
    668,136.40x = 1,002,204.60 × 439,813.60
  4. Step 4: Simplify right side
    668,136.40x = 440,783,213,062.56
  5. Step 5: Solve for x
    x = 440,783,213,062.56/668,136.40
  6. Step 6: Final answer
    x = 659,720.40

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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.