Home / 754,574.81-1,131,739.20-221,971.28

Finding the Fourth Proportional to 754,574.81, 1,131,739.20 and 221,971.28

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Solution

The fourth proportional to 754,574.81, 1,131,739.20 and 221,971.28 is: 332,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,574.81 : 1,131,739.20 = 221,971.28 : x
  2. Step 2: Convert to fraction form
    754,574.81/1,131,739.20 = 221,971.28/x
  3. Step 3: Cross multiply
    754,574.81x = 1,131,739.20 × 221,971.28
  4. Step 4: Simplify right side
    754,574.81x = 251,213,598,850.18
  5. Step 5: Solve for x
    x = 251,213,598,850.18/754,574.81
  6. Step 6: Final answer
    x = 332,920.73

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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.