Home / 663,922.80-994,696.20-403,786.80

Finding the Fourth Proportional to 663,922.80, 994,696.20 and 403,786.80

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Solution

The fourth proportional to 663,922.80, 994,696.20 and 403,786.80 is: 604,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,922.80 : 994,696.20 = 403,786.80 : x
  2. Step 2: Convert to fraction form
    663,922.80/994,696.20 = 403,786.80/x
  3. Step 3: Cross multiply
    663,922.80x = 994,696.20 × 403,786.80
  4. Step 4: Simplify right side
    663,922.80x = 401,645,195,570.16
  5. Step 5: Solve for x
    x = 401,645,195,570.16/663,922.80
  6. Step 6: Final answer
    x = 604,957.68

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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.