Home / 780,342.06-1,170,591.06-211,732.20

Finding the Fourth Proportional to 780,342.06, 1,170,591.06 and 211,732.20

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Solution

The fourth proportional to 780,342.06, 1,170,591.06 and 211,732.20 is: 317,619.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,342.06 : 1,170,591.06 = 211,732.20 : x
  2. Step 2: Convert to fraction form
    780,342.06/1,170,591.06 = 211,732.20/x
  3. Step 3: Cross multiply
    780,342.06x = 1,170,591.06 × 211,732.20
  4. Step 4: Simplify right side
    780,342.06x = 247,851,820,434.13
  5. Step 5: Solve for x
    x = 247,851,820,434.13/780,342.06
  6. Step 6: Final answer
    x = 317,619.46

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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.