Home / 525,785.30-787,641.15-303,910.10

Finding the Fourth Proportional to 525,785.30, 787,641.15 and 303,910.10

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Solution

The fourth proportional to 525,785.30, 787,641.15 and 303,910.10 is: 455,265.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,785.30 : 787,641.15 = 303,910.10 : x
  2. Step 2: Convert to fraction form
    525,785.30/787,641.15 = 303,910.10/x
  3. Step 3: Cross multiply
    525,785.30x = 787,641.15 × 303,910.10
  4. Step 4: Simplify right side
    525,785.30x = 239,372,100,660.62
  5. Step 5: Solve for x
    x = 239,372,100,660.62/525,785.30
  6. Step 6: Final answer
    x = 455,265.87

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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.