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Finding the Fourth Proportional to 622,322.82, 858,734.48 and 350,383.70

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Solution

The fourth proportional to 622,322.82, 858,734.48 and 350,383.70 is: 483,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,322.82 : 858,734.48 = 350,383.70 : x
  2. Step 2: Convert to fraction form
    622,322.82/858,734.48 = 350,383.70/x
  3. Step 3: Cross multiply
    622,322.82x = 858,734.48 × 350,383.70
  4. Step 4: Simplify right side
    622,322.82x = 300,886,558,374.39
  5. Step 5: Solve for x
    x = 300,886,558,374.39/622,322.82
  6. Step 6: Final answer
    x = 483,489.51

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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.