Home / 1,087,974.72-1,632,288.09-439,216.89

Finding the Fourth Proportional to 1,087,974.72, 1,632,288.09 and 439,216.89

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Solution

The fourth proportional to 1,087,974.72, 1,632,288.09 and 439,216.89 is: 658,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,974.72 : 1,632,288.09 = 439,216.89 : x
  2. Step 2: Convert to fraction form
    1,087,974.72/1,632,288.09 = 439,216.89/x
  3. Step 3: Cross multiply
    1,087,974.72x = 1,632,288.09 × 439,216.89
  4. Step 4: Simplify right side
    1,087,974.72x = 716,928,498,473.84
  5. Step 5: Solve for x
    x = 716,928,498,473.84/1,087,974.72
  6. Step 6: Final answer
    x = 658,956.95

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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.