Home / 765,577-1,147,979.40-445,832.20

Finding the Fourth Proportional to 765,577, 1,147,979.40 and 445,832.20

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Solution

The fourth proportional to 765,577, 1,147,979.40 and 445,832.20 is: 668,523.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,577 : 1,147,979.40 = 445,832.20 : x
  2. Step 2: Convert to fraction form
    765,577/1,147,979.40 = 445,832.20/x
  3. Step 3: Cross multiply
    765,577x = 1,147,979.40 × 445,832.20
  4. Step 4: Simplify right side
    765,577x = 511,806,181,456.68
  5. Step 5: Solve for x
    x = 511,806,181,456.68/765,577
  6. Step 6: Final answer
    x = 668,523.46

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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.