Home / 755,720.10-1,133,729.64-215,981.22

Finding the Fourth Proportional to 755,720.10, 1,133,729.64 and 215,981.22

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Solution

The fourth proportional to 755,720.10, 1,133,729.64 and 215,981.22 is: 324,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,720.10 : 1,133,729.64 = 215,981.22 : x
  2. Step 2: Convert to fraction form
    755,720.10/1,133,729.64 = 215,981.22/x
  3. Step 3: Cross multiply
    755,720.10x = 1,133,729.64 × 215,981.22
  4. Step 4: Simplify right side
    755,720.10x = 244,864,310,797.36
  5. Step 5: Solve for x
    x = 244,864,310,797.36/755,720.10
  6. Step 6: Final answer
    x = 324,014.55

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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.