Home / 815,704.25-1,125,640.58-453,150.91

Finding the Fourth Proportional to 815,704.25, 1,125,640.58 and 453,150.91

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Solution

The fourth proportional to 815,704.25, 1,125,640.58 and 453,150.91 is: 625,330.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,704.25 : 1,125,640.58 = 453,150.91 : x
  2. Step 2: Convert to fraction form
    815,704.25/1,125,640.58 = 453,150.91/x
  3. Step 3: Cross multiply
    815,704.25x = 1,125,640.58 × 453,150.91
  4. Step 4: Simplify right side
    815,704.25x = 510,085,048,080.07
  5. Step 5: Solve for x
    x = 510,085,048,080.07/815,704.25
  6. Step 6: Final answer
    x = 625,330.87

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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.