Home / 456,006.42-683,640.66-189,966.78

Finding the Fourth Proportional to 456,006.42, 683,640.66 and 189,966.78

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Solution

The fourth proportional to 456,006.42, 683,640.66 and 189,966.78 is: 284,796.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,006.42 : 683,640.66 = 189,966.78 : x
  2. Step 2: Convert to fraction form
    456,006.42/683,640.66 = 189,966.78/x
  3. Step 3: Cross multiply
    456,006.42x = 683,640.66 × 189,966.78
  4. Step 4: Simplify right side
    456,006.42x = 129,869,014,857.28
  5. Step 5: Solve for x
    x = 129,869,014,857.28/456,006.42
  6. Step 6: Final answer
    x = 284,796.46

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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.