Home / 876,796.56-1,209,979.20-474,388.56

Finding the Fourth Proportional to 876,796.56, 1,209,979.20 and 474,388.56

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Solution

The fourth proportional to 876,796.56, 1,209,979.20 and 474,388.56 is: 654,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,796.56 : 1,209,979.20 = 474,388.56 : x
  2. Step 2: Convert to fraction form
    876,796.56/1,209,979.20 = 474,388.56/x
  3. Step 3: Cross multiply
    876,796.56x = 1,209,979.20 × 474,388.56
  4. Step 4: Simplify right side
    876,796.56x = 574,000,290,317.95
  5. Step 5: Solve for x
    x = 574,000,290,317.95/876,796.56
  6. Step 6: Final answer
    x = 654,656.18

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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.