Home / 783,431.20-1,175,141.58-378,150.36

Finding the Fourth Proportional to 783,431.20, 1,175,141.58 and 378,150.36

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Solution

The fourth proportional to 783,431.20, 1,175,141.58 and 378,150.36 is: 567,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,431.20 : 1,175,141.58 = 378,150.36 : x
  2. Step 2: Convert to fraction form
    783,431.20/1,175,141.58 = 378,150.36/x
  3. Step 3: Cross multiply
    783,431.20x = 1,175,141.58 × 378,150.36
  4. Step 4: Simplify right side
    783,431.20x = 444,380,211,527.97
  5. Step 5: Solve for x
    x = 444,380,211,527.97/783,431.20
  6. Step 6: Final answer
    x = 567,223.02

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1.5x scale

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.