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Finding the Fourth Proportional to 483,996.96, 726,030 and 129,009.12

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Solution

The fourth proportional to 483,996.96, 726,030 and 129,009.12 is: 193,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,996.96 : 726,030 = 129,009.12 : x
  2. Step 2: Convert to fraction form
    483,996.96/726,030 = 129,009.12/x
  3. Step 3: Cross multiply
    483,996.96x = 726,030 × 129,009.12
  4. Step 4: Simplify right side
    483,996.96x = 93,664,491,393.60
  5. Step 5: Solve for x
    x = 93,664,491,393.60/483,996.96
  6. Step 6: Final answer
    x = 193,522.89

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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.