Home / 815,629.85-1,125,568.61-453,087.47

Finding the Fourth Proportional to 815,629.85, 1,125,568.61 and 453,087.47

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Solution

The fourth proportional to 815,629.85, 1,125,568.61 and 453,087.47 is: 625,260.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,629.85 : 1,125,568.61 = 453,087.47 : x
  2. Step 2: Convert to fraction form
    815,629.85/1,125,568.61 = 453,087.47/x
  3. Step 3: Cross multiply
    815,629.85x = 1,125,568.61 × 453,087.47
  4. Step 4: Simplify right side
    815,629.85x = 509,981,036,063.88
  5. Step 5: Solve for x
    x = 509,981,036,063.88/815,629.85
  6. Step 6: Final answer
    x = 625,260.38

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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.