Home / 1,172,329.88-1,617,815.23-663,021.32

Finding the Fourth Proportional to 1,172,329.88, 1,617,815.23 and 663,021.32

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Solution

The fourth proportional to 1,172,329.88, 1,617,815.23 and 663,021.32 is: 914,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,329.88 : 1,617,815.23 = 663,021.32 : x
  2. Step 2: Convert to fraction form
    1,172,329.88/1,617,815.23 = 663,021.32/x
  3. Step 3: Cross multiply
    1,172,329.88x = 1,617,815.23 × 663,021.32
  4. Step 4: Simplify right side
    1,172,329.88x = 1,072,645,979,564.07
  5. Step 5: Solve for x
    x = 1,072,645,979,564.07/1,172,329.88
  6. Step 6: Final answer
    x = 914,969.41

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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.