Home / 486,097.20-729,145.80-276,145.20

Finding the Fourth Proportional to 486,097.20, 729,145.80 and 276,145.20

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Solution

The fourth proportional to 486,097.20, 729,145.80 and 276,145.20 is: 414,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,097.20 : 729,145.80 = 276,145.20 : x
  2. Step 2: Convert to fraction form
    486,097.20/729,145.80 = 276,145.20/x
  3. Step 3: Cross multiply
    486,097.20x = 729,145.80 × 276,145.20
  4. Step 4: Simplify right side
    486,097.20x = 201,350,112,770.16
  5. Step 5: Solve for x
    x = 201,350,112,770.16/486,097.20
  6. Step 6: Final answer
    x = 414,217.80

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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.