Home / 782,105.50-1,079,305.59-424,409.50

Finding the Fourth Proportional to 782,105.50, 1,079,305.59 and 424,409.50

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Solution

The fourth proportional to 782,105.50, 1,079,305.59 and 424,409.50 is: 585,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,105.50 : 1,079,305.59 = 424,409.50 : x
  2. Step 2: Convert to fraction form
    782,105.50/1,079,305.59 = 424,409.50/x
  3. Step 3: Cross multiply
    782,105.50x = 1,079,305.59 × 424,409.50
  4. Step 4: Simplify right side
    782,105.50x = 458,067,545,799.11
  5. Step 5: Solve for x
    x = 458,067,545,799.11/782,105.50
  6. Step 6: Final answer
    x = 585,685.11

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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.