Home / 1,245,441.69-1,718,989.29-815,471.82

Finding the Fourth Proportional to 1,245,441.69, 1,718,989.29 and 815,471.82

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Solution

The fourth proportional to 1,245,441.69, 1,718,989.29 and 815,471.82 is: 1,125,534.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,441.69 : 1,718,989.29 = 815,471.82 : x
  2. Step 2: Convert to fraction form
    1,245,441.69/1,718,989.29 = 815,471.82/x
  3. Step 3: Cross multiply
    1,245,441.69x = 1,718,989.29 × 815,471.82
  4. Step 4: Simplify right side
    1,245,441.69x = 1,401,787,324,876.81
  5. Step 5: Solve for x
    x = 1,401,787,324,876.81/1,245,441.69
  6. Step 6: Final answer
    x = 1,125,534.29

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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.