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Finding the Fourth Proportional to 483,999.96, 726,034.50 and 129,012.12

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Solution

The fourth proportional to 483,999.96, 726,034.50 and 129,012.12 is: 193,527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,999.96 : 726,034.50 = 129,012.12 : x
  2. Step 2: Convert to fraction form
    483,999.96/726,034.50 = 129,012.12/x
  3. Step 3: Cross multiply
    483,999.96x = 726,034.50 × 129,012.12
  4. Step 4: Simplify right side
    483,999.96x = 93,667,250,038.14
  5. Step 5: Solve for x
    x = 93,667,250,038.14/483,999.96
  6. Step 6: Final answer
    x = 193,527.39

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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.