Home / 1,251,303.80-1,727,469.24-978,792.68

Finding the Fourth Proportional to 1,251,303.80, 1,727,469.24 and 978,792.68

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Solution

The fourth proportional to 1,251,303.80, 1,727,469.24 and 978,792.68 is: 1,351,257.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,303.80 : 1,727,469.24 = 978,792.68 : x
  2. Step 2: Convert to fraction form
    1,251,303.80/1,727,469.24 = 978,792.68/x
  3. Step 3: Cross multiply
    1,251,303.80x = 1,727,469.24 × 978,792.68
  4. Step 4: Simplify right side
    1,251,303.80x = 1,690,834,247,037.16
  5. Step 5: Solve for x
    x = 1,690,834,247,037.16/1,251,303.80
  6. Step 6: Final answer
    x = 1,351,257.98

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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.