Home / 1,324,956.56-1,987,435.44-426,398.18

Finding the Fourth Proportional to 1,324,956.56, 1,987,435.44 and 426,398.18

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Solution

The fourth proportional to 1,324,956.56, 1,987,435.44 and 426,398.18 is: 639,597.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,956.56 : 1,987,435.44 = 426,398.18 : x
  2. Step 2: Convert to fraction form
    1,324,956.56/1,987,435.44 = 426,398.18/x
  3. Step 3: Cross multiply
    1,324,956.56x = 1,987,435.44 × 426,398.18
  4. Step 4: Simplify right side
    1,324,956.56x = 847,438,844,546.32
  5. Step 5: Solve for x
    x = 847,438,844,546.32/1,324,956.56
  6. Step 6: Final answer
    x = 639,597.46

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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.