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Finding the Fourth Proportional to 547,813.60, 755,968.56 and 306,098.16

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Solution

The fourth proportional to 547,813.60, 755,968.56 and 306,098.16 is: 422,407.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,813.60 : 755,968.56 = 306,098.16 : x
  2. Step 2: Convert to fraction form
    547,813.60/755,968.56 = 306,098.16/x
  3. Step 3: Cross multiply
    547,813.60x = 755,968.56 × 306,098.16
  4. Step 4: Simplify right side
    547,813.60x = 231,400,585,233.85
  5. Step 5: Solve for x
    x = 231,400,585,233.85/547,813.60
  6. Step 6: Final answer
    x = 422,407.52

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1.5x scale

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.