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Finding the Fourth Proportional to 695,220, 959,403.60 and 377,268

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Solution

The fourth proportional to 695,220, 959,403.60 and 377,268 is: 520,629.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,220 : 959,403.60 = 377,268 : x
  2. Step 2: Convert to fraction form
    695,220/959,403.60 = 377,268/x
  3. Step 3: Cross multiply
    695,220x = 959,403.60 × 377,268
  4. Step 4: Simplify right side
    695,220x = 361,952,277,364.80
  5. Step 5: Solve for x
    x = 361,952,277,364.80/695,220
  6. Step 6: Final answer
    x = 520,629.84

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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.