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Finding the Fourth Proportional to 469,428.27, 647,805.27 and 254,565.73

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Solution

The fourth proportional to 469,428.27, 647,805.27 and 254,565.73 is: 351,297.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,428.27 : 647,805.27 = 254,565.73 : x
  2. Step 2: Convert to fraction form
    469,428.27/647,805.27 = 254,565.73/x
  3. Step 3: Cross multiply
    469,428.27x = 647,805.27 × 254,565.73
  4. Step 4: Simplify right side
    469,428.27x = 164,909,021,455.40
  5. Step 5: Solve for x
    x = 164,909,021,455.40/469,428.27
  6. Step 6: Final answer
    x = 351,297.59

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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.