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Finding the Fourth Proportional to 571,971.92, 857,964 and 172,616.27

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Solution

The fourth proportional to 571,971.92, 857,964 and 172,616.27 is: 258,926.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,971.92 : 857,964 = 172,616.27 : x
  2. Step 2: Convert to fraction form
    571,971.92/857,964 = 172,616.27/x
  3. Step 3: Cross multiply
    571,971.92x = 857,964 × 172,616.27
  4. Step 4: Simplify right side
    571,971.92x = 148,098,545,474.28
  5. Step 5: Solve for x
    x = 148,098,545,474.28/571,971.92
  6. Step 6: Final answer
    x = 258,926.25

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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.