Home / 781,979.52-1,173,070.80-221,027.52

Finding the Fourth Proportional to 781,979.52, 1,173,070.80 and 221,027.52

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Solution

The fourth proportional to 781,979.52, 1,173,070.80 and 221,027.52 is: 331,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,979.52 : 1,173,070.80 = 221,027.52 : x
  2. Step 2: Convert to fraction form
    781,979.52/1,173,070.80 = 221,027.52/x
  3. Step 3: Cross multiply
    781,979.52x = 1,173,070.80 × 221,027.52
  4. Step 4: Simplify right side
    781,979.52x = 259,280,929,708.42
  5. Step 5: Solve for x
    x = 259,280,929,708.42/781,979.52
  6. Step 6: Final answer
    x = 331,569.97

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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.