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Finding the Fourth Proportional to 580,453.40, 800,981.78 and 325,755.38

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Solution

The fourth proportional to 580,453.40, 800,981.78 and 325,755.38 is: 449,517.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,453.40 : 800,981.78 = 325,755.38 : x
  2. Step 2: Convert to fraction form
    580,453.40/800,981.78 = 325,755.38/x
  3. Step 3: Cross multiply
    580,453.40x = 800,981.78 × 325,755.38
  4. Step 4: Simplify right side
    580,453.40x = 260,924,118,483.29
  5. Step 5: Solve for x
    x = 260,924,118,483.29/580,453.40
  6. Step 6: Final answer
    x = 449,517.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.