Home / 1,203,683.92-1,661,134.72-687,522.72

Finding the Fourth Proportional to 1,203,683.92, 1,661,134.72 and 687,522.72

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Solution

The fourth proportional to 1,203,683.92, 1,661,134.72 and 687,522.72 is: 948,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,683.92 : 1,661,134.72 = 687,522.72 : x
  2. Step 2: Convert to fraction form
    1,203,683.92/1,661,134.72 = 687,522.72/x
  3. Step 3: Cross multiply
    1,203,683.92x = 1,661,134.72 × 687,522.72
  4. Step 4: Simplify right side
    1,203,683.92x = 1,142,067,860,980.84
  5. Step 5: Solve for x
    x = 1,142,067,860,980.84/1,203,683.92
  6. Step 6: Final answer
    x = 948,810.43

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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.