Home / 720,496.65-1,081,118.83-321,044.53

Finding the Fourth Proportional to 720,496.65, 1,081,118.83 and 321,044.53

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Solution

The fourth proportional to 720,496.65, 1,081,118.83 and 321,044.53 is: 481,733.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,496.65 : 1,081,118.83 = 321,044.53 : x
  2. Step 2: Convert to fraction form
    720,496.65/1,081,118.83 = 321,044.53/x
  3. Step 3: Cross multiply
    720,496.65x = 1,081,118.83 × 321,044.53
  4. Step 4: Simplify right side
    720,496.65x = 347,087,285,775.15
  5. Step 5: Solve for x
    x = 347,087,285,775.15/720,496.65
  6. Step 6: Final answer
    x = 481,733.38

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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.