Home / 820,080.66-1,131,711.82-457,504.54

Finding the Fourth Proportional to 820,080.66, 1,131,711.82 and 457,504.54

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Solution

The fourth proportional to 820,080.66, 1,131,711.82 and 457,504.54 is: 631,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,080.66 : 1,131,711.82 = 457,504.54 : x
  2. Step 2: Convert to fraction form
    820,080.66/1,131,711.82 = 457,504.54/x
  3. Step 3: Cross multiply
    820,080.66x = 1,131,711.82 × 457,504.54
  4. Step 4: Simplify right side
    820,080.66x = 517,763,295,621.66
  5. Step 5: Solve for x
    x = 517,763,295,621.66/820,080.66
  6. Step 6: Final answer
    x = 631,356.55

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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.