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Finding the Fourth Proportional to 480,701.11, 720,996.59 and 125,749.39

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Solution

The fourth proportional to 480,701.11, 720,996.59 and 125,749.39 is: 188,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,701.11 : 720,996.59 = 125,749.39 : x
  2. Step 2: Convert to fraction form
    480,701.11/720,996.59 = 125,749.39/x
  3. Step 3: Cross multiply
    480,701.11x = 720,996.59 × 125,749.39
  4. Step 4: Simplify right side
    480,701.11x = 90,664,880,755.83
  5. Step 5: Solve for x
    x = 90,664,880,755.83/480,701.11
  6. Step 6: Final answer
    x = 188,609.68

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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.