Home / 870,961.92-1,201,896.58-489,004.80

Finding the Fourth Proportional to 870,961.92, 1,201,896.58 and 489,004.80

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Solution

The fourth proportional to 870,961.92, 1,201,896.58 and 489,004.80 is: 674,809.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,961.92 : 1,201,896.58 = 489,004.80 : x
  2. Step 2: Convert to fraction form
    870,961.92/1,201,896.58 = 489,004.80/x
  3. Step 3: Cross multiply
    870,961.92x = 1,201,896.58 × 489,004.80
  4. Step 4: Simplify right side
    870,961.92x = 587,733,196,723.58
  5. Step 5: Solve for x
    x = 587,733,196,723.58/870,961.92
  6. Step 6: Final answer
    x = 674,809.29

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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.