Home / 1,253,128.34-1,729,317.26-680,168.36

Finding the Fourth Proportional to 1,253,128.34, 1,729,317.26 and 680,168.36

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Solution

The fourth proportional to 1,253,128.34, 1,729,317.26 and 680,168.36 is: 938,632.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,128.34 : 1,729,317.26 = 680,168.36 : x
  2. Step 2: Convert to fraction form
    1,253,128.34/1,729,317.26 = 680,168.36/x
  3. Step 3: Cross multiply
    1,253,128.34x = 1,729,317.26 × 680,168.36
  4. Step 4: Simplify right side
    1,253,128.34x = 1,176,226,884,653.89
  5. Step 5: Solve for x
    x = 1,176,226,884,653.89/1,253,128.34
  6. Step 6: Final answer
    x = 938,632.42

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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.