Home / 631,022.76-871,732.62-545,992.20

Finding the Fourth Proportional to 631,022.76, 871,732.62 and 545,992.20

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Solution

The fourth proportional to 631,022.76, 871,732.62 and 545,992.20 is: 754,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,022.76 : 871,732.62 = 545,992.20 : x
  2. Step 2: Convert to fraction form
    631,022.76/871,732.62 = 545,992.20/x
  3. Step 3: Cross multiply
    631,022.76x = 871,732.62 × 545,992.20
  4. Step 4: Simplify right side
    631,022.76x = 475,959,211,005.56
  5. Step 5: Solve for x
    x = 475,959,211,005.56/631,022.76
  6. Step 6: Final answer
    x = 754,266.31

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1.5x scale

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.