Home / 870,979.77-1,306,469.18-271,992.27

Finding the Fourth Proportional to 870,979.77, 1,306,469.18 and 271,992.27

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Solution

The fourth proportional to 870,979.77, 1,306,469.18 and 271,992.27 is: 407,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,979.77 : 1,306,469.18 = 271,992.27 : x
  2. Step 2: Convert to fraction form
    870,979.77/1,306,469.18 = 271,992.27/x
  3. Step 3: Cross multiply
    870,979.77x = 1,306,469.18 × 271,992.27
  4. Step 4: Simplify right side
    870,979.77x = 355,349,510,060.93
  5. Step 5: Solve for x
    x = 355,349,510,060.93/870,979.77
  6. Step 6: Final answer
    x = 407,988.25

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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.