Home / 820,934.64-1,133,078.76-481,512.24

Finding the Fourth Proportional to 820,934.64, 1,133,078.76 and 481,512.24

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Solution

The fourth proportional to 820,934.64, 1,133,078.76 and 481,512.24 is: 664,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,934.64 : 1,133,078.76 = 481,512.24 : x
  2. Step 2: Convert to fraction form
    820,934.64/1,133,078.76 = 481,512.24/x
  3. Step 3: Cross multiply
    820,934.64x = 1,133,078.76 × 481,512.24
  4. Step 4: Simplify right side
    820,934.64x = 545,591,291,824.02
  5. Step 5: Solve for x
    x = 545,591,291,824.02/820,934.64
  6. Step 6: Final answer
    x = 664,597.72

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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.