Home / 1,008,907.97-1,391,505.36-646,365.38

Finding the Fourth Proportional to 1,008,907.97, 1,391,505.36 and 646,365.38

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Solution

The fourth proportional to 1,008,907.97, 1,391,505.36 and 646,365.38 is: 891,479.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,907.97 : 1,391,505.36 = 646,365.38 : x
  2. Step 2: Convert to fraction form
    1,008,907.97/1,391,505.36 = 646,365.38/x
  3. Step 3: Cross multiply
    1,008,907.97x = 1,391,505.36 × 646,365.38
  4. Step 4: Simplify right side
    1,008,907.97x = 899,420,890,788.44
  5. Step 5: Solve for x
    x = 899,420,890,788.44/1,008,907.97
  6. Step 6: Final answer
    x = 891,479.62

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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.