Home / 1,253,090.64-1,729,218.81-680,118.51

Finding the Fourth Proportional to 1,253,090.64, 1,729,218.81 and 680,118.51

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Solution

The fourth proportional to 1,253,090.64, 1,729,218.81 and 680,118.51 is: 938,538.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,090.64 : 1,729,218.81 = 680,118.51 : x
  2. Step 2: Convert to fraction form
    1,253,090.64/1,729,218.81 = 680,118.51/x
  3. Step 3: Cross multiply
    1,253,090.64x = 1,729,218.81 × 680,118.51
  4. Step 4: Simplify right side
    1,253,090.64x = 1,176,073,720,521.17
  5. Step 5: Solve for x
    x = 1,176,073,720,521.17/1,253,090.64
  6. Step 6: Final answer
    x = 938,538.43

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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.