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Finding the Fourth Proportional to 450,636.75, 621,816.75 and 269,310.15

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Solution

The fourth proportional to 450,636.75, 621,816.75 and 269,310.15 is: 371,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,636.75 : 621,816.75 = 269,310.15 : x
  2. Step 2: Convert to fraction form
    450,636.75/621,816.75 = 269,310.15/x
  3. Step 3: Cross multiply
    450,636.75x = 621,816.75 × 269,310.15
  4. Step 4: Simplify right side
    450,636.75x = 167,461,562,215.01
  5. Step 5: Solve for x
    x = 167,461,562,215.01/450,636.75
  6. Step 6: Final answer
    x = 371,610.98

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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.