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Finding the Fourth Proportional to 655,268.76, 981,642.51 and 401,809.41

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Solution

The fourth proportional to 655,268.76, 981,642.51 and 401,809.41 is: 601,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,268.76 : 981,642.51 = 401,809.41 : x
  2. Step 2: Convert to fraction form
    655,268.76/981,642.51 = 401,809.41/x
  3. Step 3: Cross multiply
    655,268.76x = 981,642.51 × 401,809.41
  4. Step 4: Simplify right side
    655,268.76x = 394,433,197,774.02
  5. Step 5: Solve for x
    x = 394,433,197,774.02/655,268.76
  6. Step 6: Final answer
    x = 601,941.10

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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.