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Finding the Fourth Proportional to 656,798.27, 906,381.38 and 354,992.27

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Solution

The fourth proportional to 656,798.27, 906,381.38 and 354,992.27 is: 489,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,798.27 : 906,381.38 = 354,992.27 : x
  2. Step 2: Convert to fraction form
    656,798.27/906,381.38 = 354,992.27/x
  3. Step 3: Cross multiply
    656,798.27x = 906,381.38 × 354,992.27
  4. Step 4: Simplify right side
    656,798.27x = 321,758,381,796.97
  5. Step 5: Solve for x
    x = 321,758,381,796.97/656,798.27
  6. Step 6: Final answer
    x = 489,889.20

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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.