Home / 1,271,128.01-1,906,695.09-311,587.91

Finding the Fourth Proportional to 1,271,128.01, 1,906,695.09 and 311,587.91

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Solution

The fourth proportional to 1,271,128.01, 1,906,695.09 and 311,587.91 is: 467,382.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,128.01 : 1,906,695.09 = 311,587.91 : x
  2. Step 2: Convert to fraction form
    1,271,128.01/1,906,695.09 = 311,587.91/x
  3. Step 3: Cross multiply
    1,271,128.01x = 1,906,695.09 × 311,587.91
  4. Step 4: Simplify right side
    1,271,128.01x = 594,103,129,478.07
  5. Step 5: Solve for x
    x = 594,103,129,478.07/1,271,128.01
  6. Step 6: Final answer
    x = 467,382.61

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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.