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Finding the Fourth Proportional to 788,688, 1,088,311.44 and 482,850.60

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Solution

The fourth proportional to 788,688, 1,088,311.44 and 482,850.60 is: 666,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,688 : 1,088,311.44 = 482,850.60 : x
  2. Step 2: Convert to fraction form
    788,688/1,088,311.44 = 482,850.60/x
  3. Step 3: Cross multiply
    788,688x = 1,088,311.44 × 482,850.60
  4. Step 4: Simplify right side
    788,688x = 525,491,831,790.86
  5. Step 5: Solve for x
    x = 525,491,831,790.86/788,688
  6. Step 6: Final answer
    x = 666,286.07

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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.