Home / 490,760.31-677,239.53-272,964.30

Finding the Fourth Proportional to 490,760.31, 677,239.53 and 272,964.30

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Solution

The fourth proportional to 490,760.31, 677,239.53 and 272,964.30 is: 376,685.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,760.31 : 677,239.53 = 272,964.30 : x
  2. Step 2: Convert to fraction form
    490,760.31/677,239.53 = 272,964.30/x
  3. Step 3: Cross multiply
    490,760.31x = 677,239.53 × 272,964.30
  4. Step 4: Simplify right side
    490,760.31x = 184,862,214,238.78
  5. Step 5: Solve for x
    x = 184,862,214,238.78/490,760.31
  6. Step 6: Final answer
    x = 376,685.34

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1.5x scale

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.