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Finding the Fourth Proportional to 547,782.96, 755,865.32 and 306,035.52

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Solution

The fourth proportional to 547,782.96, 755,865.32 and 306,035.52 is: 422,287.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,782.96 : 755,865.32 = 306,035.52 : x
  2. Step 2: Convert to fraction form
    547,782.96/755,865.32 = 306,035.52/x
  3. Step 3: Cross multiply
    547,782.96x = 755,865.32 × 306,035.52
  4. Step 4: Simplify right side
    547,782.96x = 231,321,636,256.17
  5. Step 5: Solve for x
    x = 231,321,636,256.17/547,782.96
  6. Step 6: Final answer
    x = 422,287.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.