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Finding the Fourth Proportional to 834,220, 1,151,216.76 and 452,236.96

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Solution

The fourth proportional to 834,220, 1,151,216.76 and 452,236.96 is: 624,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,220 : 1,151,216.76 = 452,236.96 : x
  2. Step 2: Convert to fraction form
    834,220/1,151,216.76 = 452,236.96/x
  3. Step 3: Cross multiply
    834,220x = 1,151,216.76 × 452,236.96
  4. Step 4: Simplify right side
    834,220x = 520,622,767,843.45
  5. Step 5: Solve for x
    x = 520,622,767,843.45/834,220
  6. Step 6: Final answer
    x = 624,083.30

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Half scale
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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.