Home / 1,268,012.24-1,749,878.04-687,253.91

Finding the Fourth Proportional to 1,268,012.24, 1,749,878.04 and 687,253.91

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Solution

The fourth proportional to 1,268,012.24, 1,749,878.04 and 687,253.91 is: 948,421.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,012.24 : 1,749,878.04 = 687,253.91 : x
  2. Step 2: Convert to fraction form
    1,268,012.24/1,749,878.04 = 687,253.91/x
  3. Step 3: Cross multiply
    1,268,012.24x = 1,749,878.04 × 687,253.91
  4. Step 4: Simplify right side
    1,268,012.24x = 1,202,610,525,013.14
  5. Step 5: Solve for x
    x = 1,202,610,525,013.14/1,268,012.24
  6. Step 6: Final answer
    x = 948,421.86

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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.