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Finding the Fourth Proportional to 449,473.35, 620,249.49 and 245,521.32

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Solution

The fourth proportional to 449,473.35, 620,249.49 and 245,521.32 is: 338,806.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,473.35 : 620,249.49 = 245,521.32 : x
  2. Step 2: Convert to fraction form
    449,473.35/620,249.49 = 245,521.32/x
  3. Step 3: Cross multiply
    449,473.35x = 620,249.49 × 245,521.32
  4. Step 4: Simplify right side
    449,473.35x = 152,284,473,514.13
  5. Step 5: Solve for x
    x = 152,284,473,514.13/449,473.35
  6. Step 6: Final answer
    x = 338,806.46

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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.