Home / 1,278,257.96-1,918,057.62-480,090.44

Finding the Fourth Proportional to 1,278,257.96, 1,918,057.62 and 480,090.44

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Solution

The fourth proportional to 1,278,257.96, 1,918,057.62 and 480,090.44 is: 720,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,257.96 : 1,918,057.62 = 480,090.44 : x
  2. Step 2: Convert to fraction form
    1,278,257.96/1,918,057.62 = 480,090.44/x
  3. Step 3: Cross multiply
    1,278,257.96x = 1,918,057.62 × 480,090.44
  4. Step 4: Simplify right side
    1,278,257.96x = 920,841,133,326.64
  5. Step 5: Solve for x
    x = 920,841,133,326.64/1,278,257.96
  6. Step 6: Final answer
    x = 720,387.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.