Home / 1,324,963.88-1,987,167.18-426,485.96

Finding the Fourth Proportional to 1,324,963.88, 1,987,167.18 and 426,485.96

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Solution

The fourth proportional to 1,324,963.88, 1,987,167.18 and 426,485.96 is: 639,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,963.88 : 1,987,167.18 = 426,485.96 : x
  2. Step 2: Convert to fraction form
    1,324,963.88/1,987,167.18 = 426,485.96/x
  3. Step 3: Cross multiply
    1,324,963.88x = 1,987,167.18 × 426,485.96
  4. Step 4: Simplify right side
    1,324,963.88x = 847,498,902,442.79
  5. Step 5: Solve for x
    x = 847,498,902,442.79/1,324,963.88
  6. Step 6: Final answer
    x = 639,639.25

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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.