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Finding the Fourth Proportional to 533,420.58, 800,755.98 and 421,176.42

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Solution

The fourth proportional to 533,420.58, 800,755.98 and 421,176.42 is: 632,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,420.58 : 800,755.98 = 421,176.42 : x
  2. Step 2: Convert to fraction form
    533,420.58/800,755.98 = 421,176.42/x
  3. Step 3: Cross multiply
    533,420.58x = 800,755.98 × 421,176.42
  4. Step 4: Simplify right side
    533,420.58x = 337,259,536,949.99
  5. Step 5: Solve for x
    x = 337,259,536,949.99/533,420.58
  6. Step 6: Final answer
    x = 632,258.20

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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.