Home / 870,979.27-1,306,468.43-271,991.76

Finding the Fourth Proportional to 870,979.27, 1,306,468.43 and 271,991.76

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Solution

The fourth proportional to 870,979.27, 1,306,468.43 and 271,991.76 is: 407,987.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,979.27 : 1,306,468.43 = 271,991.76 : x
  2. Step 2: Convert to fraction form
    870,979.27/1,306,468.43 = 271,991.76/x
  3. Step 3: Cross multiply
    870,979.27x = 1,306,468.43 × 271,991.76
  4. Step 4: Simplify right side
    870,979.27x = 355,348,651,199.44
  5. Step 5: Solve for x
    x = 355,348,651,199.44/870,979.27
  6. Step 6: Final answer
    x = 407,987.50

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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.