Home / 490,614.03-677,103.45-272,844.39

Finding the Fourth Proportional to 490,614.03, 677,103.45 and 272,844.39

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Solution

The fourth proportional to 490,614.03, 677,103.45 and 272,844.39 is: 376,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,614.03 : 677,103.45 = 272,844.39 : x
  2. Step 2: Convert to fraction form
    490,614.03/677,103.45 = 272,844.39/x
  3. Step 3: Cross multiply
    490,614.03x = 677,103.45 × 272,844.39
  4. Step 4: Simplify right side
    490,614.03x = 184,743,877,782.15
  5. Step 5: Solve for x
    x = 184,743,877,782.15/490,614.03
  6. Step 6: Final answer
    x = 376,556.45

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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.