Home / 780,796.97-1,170,661.92-416,113.66

Finding the Fourth Proportional to 780,796.97, 1,170,661.92 and 416,113.66

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Solution

The fourth proportional to 780,796.97, 1,170,661.92 and 416,113.66 is: 623,886.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,796.97 : 1,170,661.92 = 416,113.66 : x
  2. Step 2: Convert to fraction form
    780,796.97/1,170,661.92 = 416,113.66/x
  3. Step 3: Cross multiply
    780,796.97x = 1,170,661.92 × 416,113.66
  4. Step 4: Simplify right side
    780,796.97x = 487,128,409,471.76
  5. Step 5: Solve for x
    x = 487,128,409,471.76/780,796.97
  6. Step 6: Final answer
    x = 623,886.14

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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.