Home / 1,162,286.37-1,603,984.83-638,990.57

Finding the Fourth Proportional to 1,162,286.37, 1,603,984.83 and 638,990.57

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Solution

The fourth proportional to 1,162,286.37, 1,603,984.83 and 638,990.57 is: 881,823.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,286.37 : 1,603,984.83 = 638,990.57 : x
  2. Step 2: Convert to fraction form
    1,162,286.37/1,603,984.83 = 638,990.57/x
  3. Step 3: Cross multiply
    1,162,286.37x = 1,603,984.83 × 638,990.57
  4. Step 4: Simplify right side
    1,162,286.37x = 1,024,931,172,773.13
  5. Step 5: Solve for x
    x = 1,024,931,172,773.13/1,162,286.37
  6. Step 6: Final answer
    x = 881,823.27

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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.