Home / 1,555,008.80-2,332,513.20-1,289,288.30

Finding the Fourth Proportional to 1,555,008.80, 2,332,513.20 and 1,289,288.30

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Solution

The fourth proportional to 1,555,008.80, 2,332,513.20 and 1,289,288.30 is: 1,933,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,008.80 : 2,332,513.20 = 1,289,288.30 : x
  2. Step 2: Convert to fraction form
    1,555,008.80/2,332,513.20 = 1,289,288.30/x
  3. Step 3: Cross multiply
    1,555,008.80x = 2,332,513.20 × 1,289,288.30
  4. Step 4: Simplify right side
    1,555,008.80x = 3,007,281,978,355.56
  5. Step 5: Solve for x
    x = 3,007,281,978,355.56/1,555,008.80
  6. Step 6: Final answer
    x = 1,933,932.45

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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.