Home / 780,910.31-1,171,460.25-219,944.81

Finding the Fourth Proportional to 780,910.31, 1,171,460.25 and 219,944.81

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Solution

The fourth proportional to 780,910.31, 1,171,460.25 and 219,944.81 is: 329,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,910.31 : 1,171,460.25 = 219,944.81 : x
  2. Step 2: Convert to fraction form
    780,910.31/1,171,460.25 = 219,944.81/x
  3. Step 3: Cross multiply
    780,910.31x = 1,171,460.25 × 219,944.81
  4. Step 4: Simplify right side
    780,910.31x = 257,656,605,037.45
  5. Step 5: Solve for x
    x = 257,656,605,037.45/780,910.31
  6. Step 6: Final answer
    x = 329,943.91

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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.