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Finding the Fourth Proportional to 550,625.84, 759,863.94 and 321,340.76

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Solution

The fourth proportional to 550,625.84, 759,863.94 and 321,340.76 is: 443,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,625.84 : 759,863.94 = 321,340.76 : x
  2. Step 2: Convert to fraction form
    550,625.84/759,863.94 = 321,340.76/x
  3. Step 3: Cross multiply
    550,625.84x = 759,863.94 × 321,340.76
  4. Step 4: Simplify right side
    550,625.84x = 244,175,255,976.19
  5. Step 5: Solve for x
    x = 244,175,255,976.19/550,625.84
  6. Step 6: Final answer
    x = 443,450.41

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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.