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Finding the Fourth Proportional to 547,601.10, 821,401.65 and 488,114.70

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Solution

The fourth proportional to 547,601.10, 821,401.65 and 488,114.70 is: 732,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,601.10 : 821,401.65 = 488,114.70 : x
  2. Step 2: Convert to fraction form
    547,601.10/821,401.65 = 488,114.70/x
  3. Step 3: Cross multiply
    547,601.10x = 821,401.65 × 488,114.70
  4. Step 4: Simplify right side
    547,601.10x = 400,938,219,969.26
  5. Step 5: Solve for x
    x = 400,938,219,969.26/547,601.10
  6. Step 6: Final answer
    x = 732,172.05

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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.