Home / 1,507,464.78-2,080,301.37-828,401.28

Finding the Fourth Proportional to 1,507,464.78, 2,080,301.37 and 828,401.28

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Solution

The fourth proportional to 1,507,464.78, 2,080,301.37 and 828,401.28 is: 1,143,193.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,464.78 : 2,080,301.37 = 828,401.28 : x
  2. Step 2: Convert to fraction form
    1,507,464.78/2,080,301.37 = 828,401.28/x
  3. Step 3: Cross multiply
    1,507,464.78x = 2,080,301.37 × 828,401.28
  4. Step 4: Simplify right side
    1,507,464.78x = 1,723,324,317,693.75
  5. Step 5: Solve for x
    x = 1,723,324,317,693.75/1,507,464.78
  6. Step 6: Final answer
    x = 1,143,193.75

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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.