Home / 1,162,287.37-1,603,986.21-638,991.57

Finding the Fourth Proportional to 1,162,287.37, 1,603,986.21 and 638,991.57

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Solution

The fourth proportional to 1,162,287.37, 1,603,986.21 and 638,991.57 is: 881,824.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,287.37 : 1,603,986.21 = 638,991.57 : x
  2. Step 2: Convert to fraction form
    1,162,287.37/1,603,986.21 = 638,991.57/x
  3. Step 3: Cross multiply
    1,162,287.37x = 1,603,986.21 × 638,991.57
  4. Step 4: Simplify right side
    1,162,287.37x = 1,024,933,666,586.25
  5. Step 5: Solve for x
    x = 1,024,933,666,586.25/1,162,287.37
  6. Step 6: Final answer
    x = 881,824.66

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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.