Home / 1,555,013.80-2,332,520.70-1,289,293.30

Finding the Fourth Proportional to 1,555,013.80, 2,332,520.70 and 1,289,293.30

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Solution

The fourth proportional to 1,555,013.80, 2,332,520.70 and 1,289,293.30 is: 1,933,939.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,013.80 : 2,332,520.70 = 1,289,293.30 : x
  2. Step 2: Convert to fraction form
    1,555,013.80/2,332,520.70 = 1,289,293.30/x
  3. Step 3: Cross multiply
    1,555,013.80x = 2,332,520.70 × 1,289,293.30
  4. Step 4: Simplify right side
    1,555,013.80x = 3,007,303,310,621.31
  5. Step 5: Solve for x
    x = 3,007,303,310,621.31/1,555,013.80
  6. Step 6: Final answer
    x = 1,933,939.95

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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.