Home / 1,128,020.66-1,556,867.52-669,388.13

Finding the Fourth Proportional to 1,128,020.66, 1,556,867.52 and 669,388.13

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Solution

The fourth proportional to 1,128,020.66, 1,556,867.52 and 669,388.13 is: 923,873.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,020.66 : 1,556,867.52 = 669,388.13 : x
  2. Step 2: Convert to fraction form
    1,128,020.66/1,556,867.52 = 669,388.13/x
  3. Step 3: Cross multiply
    1,128,020.66x = 1,556,867.52 × 669,388.13
  4. Step 4: Simplify right side
    1,128,020.66x = 1,042,148,635,924.45
  5. Step 5: Solve for x
    x = 1,042,148,635,924.45/1,128,020.66
  6. Step 6: Final answer
    x = 923,873.71

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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.