Home / 855,068.97-1,179,708.66-492,485.57

Finding the Fourth Proportional to 855,068.97, 1,179,708.66 and 492,485.57

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Solution

The fourth proportional to 855,068.97, 1,179,708.66 and 492,485.57 is: 679,465.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,068.97 : 1,179,708.66 = 492,485.57 : x
  2. Step 2: Convert to fraction form
    855,068.97/1,179,708.66 = 492,485.57/x
  3. Step 3: Cross multiply
    855,068.97x = 1,179,708.66 × 492,485.57
  4. Step 4: Simplify right side
    855,068.97x = 580,989,491,854.04
  5. Step 5: Solve for x
    x = 580,989,491,854.04/855,068.97
  6. Step 6: Final answer
    x = 679,465.06

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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.