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Finding the Fourth Proportional to 657,998.60, 986,709.90 and 302,894.60

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Solution

The fourth proportional to 657,998.60, 986,709.90 and 302,894.60 is: 454,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,998.60 : 986,709.90 = 302,894.60 : x
  2. Step 2: Convert to fraction form
    657,998.60/986,709.90 = 302,894.60/x
  3. Step 3: Cross multiply
    657,998.60x = 986,709.90 × 302,894.60
  4. Step 4: Simplify right side
    657,998.60x = 298,869,100,476.54
  5. Step 5: Solve for x
    x = 298,869,100,476.54/657,998.60
  6. Step 6: Final answer
    x = 454,209.33

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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.