Home / 1,231,464.40-1,699,404.48-687,609.28

Finding the Fourth Proportional to 1,231,464.40, 1,699,404.48 and 687,609.28

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Solution

The fourth proportional to 1,231,464.40, 1,699,404.48 and 687,609.28 is: 948,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,464.40 : 1,699,404.48 = 687,609.28 : x
  2. Step 2: Convert to fraction form
    1,231,464.40/1,699,404.48 = 687,609.28/x
  3. Step 3: Cross multiply
    1,231,464.40x = 1,699,404.48 × 687,609.28
  4. Step 4: Simplify right side
    1,231,464.40x = 1,168,526,290,921.57
  5. Step 5: Solve for x
    x = 1,168,526,290,921.57/1,231,464.40
  6. Step 6: Final answer
    x = 948,891.65

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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.