Home / 1,362,578.87-1,880,401.47-781,908.33

Finding the Fourth Proportional to 1,362,578.87, 1,880,401.47 and 781,908.33

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Solution

The fourth proportional to 1,362,578.87, 1,880,401.47 and 781,908.33 is: 1,079,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,578.87 : 1,880,401.47 = 781,908.33 : x
  2. Step 2: Convert to fraction form
    1,362,578.87/1,880,401.47 = 781,908.33/x
  3. Step 3: Cross multiply
    1,362,578.87x = 1,880,401.47 × 781,908.33
  4. Step 4: Simplify right side
    1,362,578.87x = 1,470,301,573,137.25
  5. Step 5: Solve for x
    x = 1,470,301,573,137.25/1,362,578.87
  6. Step 6: Final answer
    x = 1,079,057.96

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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.