Home / 1,355,469.35-2,031,882.09-645,306.71

Finding the Fourth Proportional to 1,355,469.35, 2,031,882.09 and 645,306.71

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Solution

The fourth proportional to 1,355,469.35, 2,031,882.09 and 645,306.71 is: 967,330.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,469.35 : 2,031,882.09 = 645,306.71 : x
  2. Step 2: Convert to fraction form
    1,355,469.35/2,031,882.09 = 645,306.71/x
  3. Step 3: Cross multiply
    1,355,469.35x = 2,031,882.09 × 645,306.71
  4. Step 4: Simplify right side
    1,355,469.35x = 1,311,187,146,605.82
  5. Step 5: Solve for x
    x = 1,311,187,146,605.82/1,355,469.35
  6. Step 6: Final answer
    x = 967,330.72

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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.