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Finding the Fourth Proportional to 450,449.32, 621,515.64 and 269,219.92

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Solution

The fourth proportional to 450,449.32, 621,515.64 and 269,219.92 is: 371,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,449.32 : 621,515.64 = 269,219.92 : x
  2. Step 2: Convert to fraction form
    450,449.32/621,515.64 = 269,219.92/x
  3. Step 3: Cross multiply
    450,449.32x = 621,515.64 × 269,219.92
  4. Step 4: Simplify right side
    450,449.32x = 167,324,390,879.55
  5. Step 5: Solve for x
    x = 167,324,390,879.55/450,449.32
  6. Step 6: Final answer
    x = 371,461.08

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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.