Home / 1,231,405.26-1,699,323.14-687,550.30

Finding the Fourth Proportional to 1,231,405.26, 1,699,323.14 and 687,550.30

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Solution

The fourth proportional to 1,231,405.26, 1,699,323.14 and 687,550.30 is: 948,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,405.26 : 1,699,323.14 = 687,550.30 : x
  2. Step 2: Convert to fraction form
    1,231,405.26/1,699,323.14 = 687,550.30/x
  3. Step 3: Cross multiply
    1,231,405.26x = 1,699,323.14 × 687,550.30
  4. Step 4: Simplify right side
    1,231,405.26x = 1,168,370,134,703.94
  5. Step 5: Solve for x
    x = 1,168,370,134,703.94/1,231,405.26
  6. Step 6: Final answer
    x = 948,810.41

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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.