Home / 455,839.80-683,759.70-314,122.20

Finding the Fourth Proportional to 455,839.80, 683,759.70 and 314,122.20

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Solution

The fourth proportional to 455,839.80, 683,759.70 and 314,122.20 is: 471,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,839.80 : 683,759.70 = 314,122.20 : x
  2. Step 2: Convert to fraction form
    455,839.80/683,759.70 = 314,122.20/x
  3. Step 3: Cross multiply
    455,839.80x = 683,759.70 × 314,122.20
  4. Step 4: Simplify right side
    455,839.80x = 214,784,101,235.34
  5. Step 5: Solve for x
    x = 214,784,101,235.34/455,839.80
  6. Step 6: Final answer
    x = 471,183.30

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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.