Home / 449,383.23-620,145.53-245,434.24

Finding the Fourth Proportional to 449,383.23, 620,145.53 and 245,434.24

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Solution

The fourth proportional to 449,383.23, 620,145.53 and 245,434.24 is: 338,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,383.23 : 620,145.53 = 245,434.24 : x
  2. Step 2: Convert to fraction form
    449,383.23/620,145.53 = 245,434.24/x
  3. Step 3: Cross multiply
    449,383.23x = 620,145.53 × 245,434.24
  4. Step 4: Simplify right side
    449,383.23x = 152,204,944,067.41
  5. Step 5: Solve for x
    x = 152,204,944,067.41/449,383.23
  6. Step 6: Final answer
    x = 338,697.43

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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.