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Finding the Fourth Proportional to 482,880.80, 724,904.40 and 479,381.60

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Solution

The fourth proportional to 482,880.80, 724,904.40 and 479,381.60 is: 719,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,880.80 : 724,904.40 = 479,381.60 : x
  2. Step 2: Convert to fraction form
    482,880.80/724,904.40 = 479,381.60/x
  3. Step 3: Cross multiply
    482,880.80x = 724,904.40 × 479,381.60
  4. Step 4: Simplify right side
    482,880.80x = 347,505,831,119.04
  5. Step 5: Solve for x
    x = 347,505,831,119.04/482,880.80
  6. Step 6: Final answer
    x = 719,651.37

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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.