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Finding the Fourth Proportional to 707,501.11, 976,245.37 and 397,391.79

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Solution

The fourth proportional to 707,501.11, 976,245.37 and 397,391.79 is: 548,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,501.11 : 976,245.37 = 397,391.79 : x
  2. Step 2: Convert to fraction form
    707,501.11/976,245.37 = 397,391.79/x
  3. Step 3: Cross multiply
    707,501.11x = 976,245.37 × 397,391.79
  4. Step 4: Simplify right side
    707,501.11x = 387,951,893,076.55
  5. Step 5: Solve for x
    x = 387,951,893,076.55/707,501.11
  6. Step 6: Final answer
    x = 548,341.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.