Home / 1,067,431.47-1,472,910.03-637,620.36

Finding the Fourth Proportional to 1,067,431.47, 1,472,910.03 and 637,620.36

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Solution

The fourth proportional to 1,067,431.47, 1,472,910.03 and 637,620.36 is: 879,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067,431.47 : 1,472,910.03 = 637,620.36 : x
  2. Step 2: Convert to fraction form
    1,067,431.47/1,472,910.03 = 637,620.36/x
  3. Step 3: Cross multiply
    1,067,431.47x = 1,472,910.03 × 637,620.36
  4. Step 4: Simplify right side
    1,067,431.47x = 939,157,423,576.21
  5. Step 5: Solve for x
    x = 939,157,423,576.21/1,067,431.47
  6. Step 6: Final answer
    x = 879,829.24

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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.