Home / 746,391.22-1,029,968.40-419,753.05

Finding the Fourth Proportional to 746,391.22, 1,029,968.40 and 419,753.05

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Solution

The fourth proportional to 746,391.22, 1,029,968.40 and 419,753.05 is: 579,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,391.22 : 1,029,968.40 = 419,753.05 : x
  2. Step 2: Convert to fraction form
    746,391.22/1,029,968.40 = 419,753.05/x
  3. Step 3: Cross multiply
    746,391.22x = 1,029,968.40 × 419,753.05
  4. Step 4: Simplify right side
    746,391.22x = 432,332,377,303.62
  5. Step 5: Solve for x
    x = 432,332,377,303.62/746,391.22
  6. Step 6: Final answer
    x = 579,230.26

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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.