Home / 870,863.28-1,201,709.16-488,815.44

Finding the Fourth Proportional to 870,863.28, 1,201,709.16 and 488,815.44

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Solution

The fourth proportional to 870,863.28, 1,201,709.16 and 488,815.44 is: 674,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,863.28 : 1,201,709.16 = 488,815.44 : x
  2. Step 2: Convert to fraction form
    870,863.28/1,201,709.16 = 488,815.44/x
  3. Step 3: Cross multiply
    870,863.28x = 1,201,709.16 × 488,815.44
  4. Step 4: Simplify right side
    870,863.28x = 587,413,991,797.43
  5. Step 5: Solve for x
    x = 587,413,991,797.43/870,863.28
  6. Step 6: Final answer
    x = 674,519.19

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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.