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Finding the Fourth Proportional to 547,511.20, 821,266.80 and 488,528.80

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Solution

The fourth proportional to 547,511.20, 821,266.80 and 488,528.80 is: 732,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,511.20 : 821,266.80 = 488,528.80 : x
  2. Step 2: Convert to fraction form
    547,511.20/821,266.80 = 488,528.80/x
  3. Step 3: Cross multiply
    547,511.20x = 821,266.80 × 488,528.80
  4. Step 4: Simplify right side
    547,511.20x = 401,212,484,283.84
  5. Step 5: Solve for x
    x = 401,212,484,283.84/547,511.20
  6. Step 6: Final answer
    x = 732,793.20

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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.