Home / 1,040,378-1,435,721.64-563,450

Finding the Fourth Proportional to 1,040,378, 1,435,721.64 and 563,450

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Solution

The fourth proportional to 1,040,378, 1,435,721.64 and 563,450 is: 777,561

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,378 : 1,435,721.64 = 563,450 : x
  2. Step 2: Convert to fraction form
    1,040,378/1,435,721.64 = 563,450/x
  3. Step 3: Cross multiply
    1,040,378x = 1,435,721.64 × 563,450
  4. Step 4: Simplify right side
    1,040,378x = 808,957,358,058
  5. Step 5: Solve for x
    x = 808,957,358,058/1,040,378
  6. Step 6: Final answer
    x = 777,561

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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.