Home / 1,276,143.90-1,761,155.91-703,183.38

Finding the Fourth Proportional to 1,276,143.90, 1,761,155.91 and 703,183.38

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Solution

The fourth proportional to 1,276,143.90, 1,761,155.91 and 703,183.38 is: 970,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,143.90 : 1,761,155.91 = 703,183.38 : x
  2. Step 2: Convert to fraction form
    1,276,143.90/1,761,155.91 = 703,183.38/x
  3. Step 3: Cross multiply
    1,276,143.90x = 1,761,155.91 × 703,183.38
  4. Step 4: Simplify right side
    1,276,143.90x = 1,238,415,565,500.78
  5. Step 5: Solve for x
    x = 1,238,415,565,500.78/1,276,143.90
  6. Step 6: Final answer
    x = 970,435.67

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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.