Home / 1,143,455.54-1,578,255.39-776,553.48

Finding the Fourth Proportional to 1,143,455.54, 1,578,255.39 and 776,553.48

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Solution

The fourth proportional to 1,143,455.54, 1,578,255.39 and 776,553.48 is: 1,071,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,455.54 : 1,578,255.39 = 776,553.48 : x
  2. Step 2: Convert to fraction form
    1,143,455.54/1,578,255.39 = 776,553.48/x
  3. Step 3: Cross multiply
    1,143,455.54x = 1,578,255.39 × 776,553.48
  4. Step 4: Simplify right side
    1,143,455.54x = 1,225,599,715,433.26
  5. Step 5: Solve for x
    x = 1,225,599,715,433.26/1,143,455.54
  6. Step 6: Final answer
    x = 1,071,838.54

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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.