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Finding the Fourth Proportional to 450,006, 621,021.24 and 248,814.96

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Solution

The fourth proportional to 450,006, 621,021.24 and 248,814.96 is: 343,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,006 : 621,021.24 = 248,814.96 : x
  2. Step 2: Convert to fraction form
    450,006/621,021.24 = 248,814.96/x
  3. Step 3: Cross multiply
    450,006x = 621,021.24 × 248,814.96
  4. Step 4: Simplify right side
    450,006x = 154,519,374,989.75
  5. Step 5: Solve for x
    x = 154,519,374,989.75/450,006
  6. Step 6: Final answer
    x = 343,371.81

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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.