Home / 870,974.72-1,306,461.61-271,987.22

Finding the Fourth Proportional to 870,974.72, 1,306,461.61 and 271,987.22

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Solution

The fourth proportional to 870,974.72, 1,306,461.61 and 271,987.22 is: 407,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,974.72 : 1,306,461.61 = 271,987.22 : x
  2. Step 2: Convert to fraction form
    870,974.72/1,306,461.61 = 271,987.22/x
  3. Step 3: Cross multiply
    870,974.72x = 1,306,461.61 × 271,987.22
  4. Step 4: Simplify right side
    870,974.72x = 355,340,856,067.99
  5. Step 5: Solve for x
    x = 355,340,856,067.99/870,974.72
  6. Step 6: Final answer
    x = 407,980.68

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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.