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Finding the Fourth Proportional to 695,062.80, 958,901.58 and 422,912.52

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Solution

The fourth proportional to 695,062.80, 958,901.58 and 422,912.52 is: 583,445.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,062.80 : 958,901.58 = 422,912.52 : x
  2. Step 2: Convert to fraction form
    695,062.80/958,901.58 = 422,912.52/x
  3. Step 3: Cross multiply
    695,062.80x = 958,901.58 × 422,912.52
  4. Step 4: Simplify right side
    695,062.80x = 405,531,483,629.78
  5. Step 5: Solve for x
    x = 405,531,483,629.78/695,062.80
  6. Step 6: Final answer
    x = 583,445.82

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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.