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Finding the Fourth Proportional to 558,255.32, 770,383.86 and 303,600.68

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Solution

The fourth proportional to 558,255.32, 770,383.86 and 303,600.68 is: 418,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,255.32 : 770,383.86 = 303,600.68 : x
  2. Step 2: Convert to fraction form
    558,255.32/770,383.86 = 303,600.68/x
  3. Step 3: Cross multiply
    558,255.32x = 770,383.86 × 303,600.68
  4. Step 4: Simplify right side
    558,255.32x = 233,889,063,757.03
  5. Step 5: Solve for x
    x = 233,889,063,757.03/558,255.32
  6. Step 6: Final answer
    x = 418,964.33

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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.