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Finding the Fourth Proportional to 911,064.80, 1,366,457.22 and 303,863.84

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Solution

The fourth proportional to 911,064.80, 1,366,457.22 and 303,863.84 is: 455,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,064.80 : 1,366,457.22 = 303,863.84 : x
  2. Step 2: Convert to fraction form
    911,064.80/1,366,457.22 = 303,863.84/x
  3. Step 3: Cross multiply
    911,064.80x = 1,366,457.22 × 303,863.84
  4. Step 4: Simplify right side
    911,064.80x = 415,216,938,064.93
  5. Step 5: Solve for x
    x = 415,216,938,064.93/911,064.80
  6. Step 6: Final answer
    x = 455,749.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.