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Finding the Fourth Proportional to 474,504.40, 711,756.60 and 443,400.40

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Solution

The fourth proportional to 474,504.40, 711,756.60 and 443,400.40 is: 665,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,504.40 : 711,756.60 = 443,400.40 : x
  2. Step 2: Convert to fraction form
    474,504.40/711,756.60 = 443,400.40/x
  3. Step 3: Cross multiply
    474,504.40x = 711,756.60 × 443,400.40
  4. Step 4: Simplify right side
    474,504.40x = 315,593,161,142.64
  5. Step 5: Solve for x
    x = 315,593,161,142.64/474,504.40
  6. Step 6: Final answer
    x = 665,100.60

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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.