Home / 1,259,812.10-1,738,465.79-715,872.39

Finding the Fourth Proportional to 1,259,812.10, 1,738,465.79 and 715,872.39

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Solution

The fourth proportional to 1,259,812.10, 1,738,465.79 and 715,872.39 is: 987,861.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,812.10 : 1,738,465.79 = 715,872.39 : x
  2. Step 2: Convert to fraction form
    1,259,812.10/1,738,465.79 = 715,872.39/x
  3. Step 3: Cross multiply
    1,259,812.10x = 1,738,465.79 × 715,872.39
  4. Step 4: Simplify right side
    1,259,812.10x = 1,244,519,660,020.54
  5. Step 5: Solve for x
    x = 1,244,519,660,020.54/1,259,812.10
  6. Step 6: Final answer
    x = 987,861.33

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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.