Home / 1,297,686.62-1,946,079.09-722,188.10

Finding the Fourth Proportional to 1,297,686.62, 1,946,079.09 and 722,188.10

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Solution

The fourth proportional to 1,297,686.62, 1,946,079.09 and 722,188.10 is: 1,083,031.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,686.62 : 1,946,079.09 = 722,188.10 : x
  2. Step 2: Convert to fraction form
    1,297,686.62/1,946,079.09 = 722,188.10/x
  3. Step 3: Cross multiply
    1,297,686.62x = 1,946,079.09 × 722,188.10
  4. Step 4: Simplify right side
    1,297,686.62x = 1,405,435,150,726.43
  5. Step 5: Solve for x
    x = 1,405,435,150,726.43/1,297,686.62
  6. Step 6: Final answer
    x = 1,083,031.25

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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.