Home / 1,227,738.55-1,838,497.42-978,906.55

Finding the Fourth Proportional to 1,227,738.55, 1,838,497.42 and 978,906.55

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Solution

The fourth proportional to 1,227,738.55, 1,838,497.42 and 978,906.55 is: 1,465,879.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,738.55 : 1,838,497.42 = 978,906.55 : x
  2. Step 2: Convert to fraction form
    1,227,738.55/1,838,497.42 = 978,906.55/x
  3. Step 3: Cross multiply
    1,227,738.55x = 1,838,497.42 × 978,906.55
  4. Step 4: Simplify right side
    1,227,738.55x = 1,799,717,166,596.10
  5. Step 5: Solve for x
    x = 1,799,717,166,596.10/1,227,738.55
  6. Step 6: Final answer
    x = 1,465,879.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.