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Finding the Fourth Proportional to 545,359.62, 818,156.69 and 271,954.80

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Solution

The fourth proportional to 545,359.62, 818,156.69 and 271,954.80 is: 407,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,359.62 : 818,156.69 = 271,954.80 : x
  2. Step 2: Convert to fraction form
    545,359.62/818,156.69 = 271,954.80/x
  3. Step 3: Cross multiply
    545,359.62x = 818,156.69 × 271,954.80
  4. Step 4: Simplify right side
    545,359.62x = 222,501,638,997.61
  5. Step 5: Solve for x
    x = 222,501,638,997.61/545,359.62
  6. Step 6: Final answer
    x = 407,990.67

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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.