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Finding the Fourth Proportional to 547,514.70, 821,272.05 and 488,532.30

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Solution

The fourth proportional to 547,514.70, 821,272.05 and 488,532.30 is: 732,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,514.70 : 821,272.05 = 488,532.30 : x
  2. Step 2: Convert to fraction form
    547,514.70/821,272.05 = 488,532.30/x
  3. Step 3: Cross multiply
    547,514.70x = 821,272.05 × 488,532.30
  4. Step 4: Simplify right side
    547,514.70x = 401,217,923,512.22
  5. Step 5: Solve for x
    x = 401,217,923,512.22/547,514.70
  6. Step 6: Final answer
    x = 732,798.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.