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Finding the Fourth Proportional to 558,613.50, 770,880.15 and 303,960.30

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Solution

The fourth proportional to 558,613.50, 770,880.15 and 303,960.30 is: 419,461.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,613.50 : 770,880.15 = 303,960.30 : x
  2. Step 2: Convert to fraction form
    558,613.50/770,880.15 = 303,960.30/x
  3. Step 3: Cross multiply
    558,613.50x = 770,880.15 × 303,960.30
  4. Step 4: Simplify right side
    558,613.50x = 234,316,961,658.05
  5. Step 5: Solve for x
    x = 234,316,961,658.05/558,613.50
  6. Step 6: Final answer
    x = 419,461.69

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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.