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Finding the Fourth Proportional to 558,612, 770,878.08 and 303,958.80

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Solution

The fourth proportional to 558,612, 770,878.08 and 303,958.80 is: 419,459.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,612 : 770,878.08 = 303,958.80 : x
  2. Step 2: Convert to fraction form
    558,612/770,878.08 = 303,958.80/x
  3. Step 3: Cross multiply
    558,612x = 770,878.08 × 303,958.80
  4. Step 4: Simplify right side
    558,612x = 234,315,176,143.10
  5. Step 5: Solve for x
    x = 234,315,176,143.10/558,612
  6. Step 6: Final answer
    x = 419,459.62

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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.