Home / 957,361.29-1,321,141.44-521,782.56

Finding the Fourth Proportional to 957,361.29, 1,321,141.44 and 521,782.56

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Solution

The fourth proportional to 957,361.29, 1,321,141.44 and 521,782.56 is: 720,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,361.29 : 1,321,141.44 = 521,782.56 : x
  2. Step 2: Convert to fraction form
    957,361.29/1,321,141.44 = 521,782.56/x
  3. Step 3: Cross multiply
    957,361.29x = 1,321,141.44 × 521,782.56
  4. Step 4: Simplify right side
    957,361.29x = 689,348,562,685.29
  5. Step 5: Solve for x
    x = 689,348,562,685.29/957,361.29
  6. Step 6: Final answer
    x = 720,050.59

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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.