Home / 683,722.80-1,026,507.60-399,704.40

Finding the Fourth Proportional to 683,722.80, 1,026,507.60 and 399,704.40

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Solution

The fourth proportional to 683,722.80, 1,026,507.60 and 399,704.40 is: 600,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,722.80 : 1,026,507.60 = 399,704.40 : x
  2. Step 2: Convert to fraction form
    683,722.80/1,026,507.60 = 399,704.40/x
  3. Step 3: Cross multiply
    683,722.80x = 1,026,507.60 × 399,704.40
  4. Step 4: Simplify right side
    683,722.80x = 410,299,604,353.44
  5. Step 5: Solve for x
    x = 410,299,604,353.44/683,722.80
  6. Step 6: Final answer
    x = 600,096.42

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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.