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Finding the Fourth Proportional to 547,601.68, 755,668.20 and 305,880.40

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Solution

The fourth proportional to 547,601.68, 755,668.20 and 305,880.40 is: 422,102.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,601.68 : 755,668.20 = 305,880.40 : x
  2. Step 2: Convert to fraction form
    547,601.68/755,668.20 = 305,880.40/x
  3. Step 3: Cross multiply
    547,601.68x = 755,668.20 × 305,880.40
  4. Step 4: Simplify right side
    547,601.68x = 231,144,091,283.28
  5. Step 5: Solve for x
    x = 231,144,091,283.28/547,601.68
  6. Step 6: Final answer
    x = 422,102.60

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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.