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Finding the Fourth Proportional to 547,603.60, 821,405.40 and 488,117.20

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Solution

The fourth proportional to 547,603.60, 821,405.40 and 488,117.20 is: 732,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,603.60 : 821,405.40 = 488,117.20 : x
  2. Step 2: Convert to fraction form
    547,603.60/821,405.40 = 488,117.20/x
  3. Step 3: Cross multiply
    547,603.60x = 821,405.40 × 488,117.20
  4. Step 4: Simplify right side
    547,603.60x = 400,942,103,912.88
  5. Step 5: Solve for x
    x = 400,942,103,912.88/547,603.60
  6. Step 6: Final answer
    x = 732,175.80

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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.