Home / 456,207.80-683,015.70-431,382.20

Finding the Fourth Proportional to 456,207.80, 683,015.70 and 431,382.20

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Solution

The fourth proportional to 456,207.80, 683,015.70 and 431,382.20 is: 645,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,207.80 : 683,015.70 = 431,382.20 : x
  2. Step 2: Convert to fraction form
    456,207.80/683,015.70 = 431,382.20/x
  3. Step 3: Cross multiply
    456,207.80x = 683,015.70 × 431,382.20
  4. Step 4: Simplify right side
    456,207.80x = 294,640,815,300.54
  5. Step 5: Solve for x
    x = 294,640,815,300.54/456,207.80
  6. Step 6: Final answer
    x = 645,847.82

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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.