Home / 555,238-766,228.56-300,591.28

Finding the Fourth Proportional to 555,238, 766,228.56 and 300,591.28

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Solution

The fourth proportional to 555,238, 766,228.56 and 300,591.28 is: 414,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,238 : 766,228.56 = 300,591.28 : x
  2. Step 2: Convert to fraction form
    555,238/766,228.56 = 300,591.28/x
  3. Step 3: Cross multiply
    555,238x = 766,228.56 × 300,591.28
  4. Step 4: Simplify right side
    555,238x = 230,321,623,622.96
  5. Step 5: Solve for x
    x = 230,321,623,622.96/555,238
  6. Step 6: Final answer
    x = 414,816.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.