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Finding the Fourth Proportional to 813,455, 1,220,284.54 and 244,747.52

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Solution

The fourth proportional to 813,455, 1,220,284.54 and 244,747.52 is: 367,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,455 : 1,220,284.54 = 244,747.52 : x
  2. Step 2: Convert to fraction form
    813,455/1,220,284.54 = 244,747.52/x
  3. Step 3: Cross multiply
    813,455x = 1,220,284.54 × 244,747.52
  4. Step 4: Simplify right side
    813,455x = 298,661,614,859.34
  5. Step 5: Solve for x
    x = 298,661,614,859.34/813,455
  6. Step 6: Final answer
    x = 367,151.98

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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.