Home / 1,295,138.80-1,942,708.20-408,674.80

Finding the Fourth Proportional to 1,295,138.80, 1,942,708.20 and 408,674.80

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Solution

The fourth proportional to 1,295,138.80, 1,942,708.20 and 408,674.80 is: 613,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,138.80 : 1,942,708.20 = 408,674.80 : x
  2. Step 2: Convert to fraction form
    1,295,138.80/1,942,708.20 = 408,674.80/x
  3. Step 3: Cross multiply
    1,295,138.80x = 1,942,708.20 × 408,674.80
  4. Step 4: Simplify right side
    1,295,138.80x = 793,935,885,093.36
  5. Step 5: Solve for x
    x = 793,935,885,093.36/1,295,138.80
  6. Step 6: Final answer
    x = 613,012.20

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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.