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Finding the Fourth Proportional to 555,130.80, 831,384.50 and 271,015.92

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Solution

The fourth proportional to 555,130.80, 831,384.50 and 271,015.92 is: 405,883.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,130.80 : 831,384.50 = 271,015.92 : x
  2. Step 2: Convert to fraction form
    555,130.80/831,384.50 = 271,015.92/x
  3. Step 3: Cross multiply
    555,130.80x = 831,384.50 × 271,015.92
  4. Step 4: Simplify right side
    555,130.80x = 225,318,435,818.78
  5. Step 5: Solve for x
    x = 225,318,435,818.78/555,130.80
  6. Step 6: Final answer
    x = 405,883.51

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.