Home / 1,231,655-1,699,585.94-687,758.32

Finding the Fourth Proportional to 1,231,655, 1,699,585.94 and 687,758.32

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Solution

The fourth proportional to 1,231,655, 1,699,585.94 and 687,758.32 is: 949,051.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,655 : 1,699,585.94 = 687,758.32 : x
  2. Step 2: Convert to fraction form
    1,231,655/1,699,585.94 = 687,758.32/x
  3. Step 3: Cross multiply
    1,231,655x = 1,699,585.94 × 687,758.32
  4. Step 4: Simplify right side
    1,231,655x = 1,168,904,370,790.02
  5. Step 5: Solve for x
    x = 1,168,904,370,790.02/1,231,655
  6. Step 6: Final answer
    x = 949,051.78

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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.