Home / 870,285.92-1,305,133.20-301,534.25

Finding the Fourth Proportional to 870,285.92, 1,305,133.20 and 301,534.25

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Solution

The fourth proportional to 870,285.92, 1,305,133.20 and 301,534.25 is: 452,198.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,285.92 : 1,305,133.20 = 301,534.25 : x
  2. Step 2: Convert to fraction form
    870,285.92/1,305,133.20 = 301,534.25/x
  3. Step 3: Cross multiply
    870,285.92x = 1,305,133.20 × 301,534.25
  4. Step 4: Simplify right side
    870,285.92x = 393,542,354,086.43
  5. Step 5: Solve for x
    x = 393,542,354,086.43/870,285.92
  6. Step 6: Final answer
    x = 452,198.92

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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.