Home / 781,662.47-1,172,588.28-276,120.01

Finding the Fourth Proportional to 781,662.47, 1,172,588.28 and 276,120.01

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Solution

The fourth proportional to 781,662.47, 1,172,588.28 and 276,120.01 is: 414,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,662.47 : 1,172,588.28 = 276,120.01 : x
  2. Step 2: Convert to fraction form
    781,662.47/1,172,588.28 = 276,120.01/x
  3. Step 3: Cross multiply
    781,662.47x = 1,172,588.28 × 276,120.01
  4. Step 4: Simplify right side
    781,662.47x = 323,775,082,987.13
  5. Step 5: Solve for x
    x = 323,775,082,987.13/781,662.47
  6. Step 6: Final answer
    x = 414,213.42

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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.