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Finding the Fourth Proportional to 657,922.90, 986,118.90 and 302,972.80

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Solution

The fourth proportional to 657,922.90, 986,118.90 and 302,972.80 is: 454,106.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,922.90 : 986,118.90 = 302,972.80 : x
  2. Step 2: Convert to fraction form
    657,922.90/986,118.90 = 302,972.80/x
  3. Step 3: Cross multiply
    657,922.90x = 986,118.90 × 302,972.80
  4. Step 4: Simplify right side
    657,922.90x = 298,767,204,265.92
  5. Step 5: Solve for x
    x = 298,767,204,265.92/657,922.90
  6. Step 6: Final answer
    x = 454,106.71

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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.