Home / 820,037.20-1,230,055.80-654,149.20

Finding the Fourth Proportional to 820,037.20, 1,230,055.80 and 654,149.20

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Solution

The fourth proportional to 820,037.20, 1,230,055.80 and 654,149.20 is: 981,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,037.20 : 1,230,055.80 = 654,149.20 : x
  2. Step 2: Convert to fraction form
    820,037.20/1,230,055.80 = 654,149.20/x
  3. Step 3: Cross multiply
    820,037.20x = 1,230,055.80 × 654,149.20
  4. Step 4: Simplify right side
    820,037.20x = 804,640,017,525.36
  5. Step 5: Solve for x
    x = 804,640,017,525.36/820,037.20
  6. Step 6: Final answer
    x = 981,223.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.