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Finding the Fourth Proportional to 668,336.30, 922,352.98 and 381,850.26

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Solution

The fourth proportional to 668,336.30, 922,352.98 and 381,850.26 is: 526,981.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,336.30 : 922,352.98 = 381,850.26 : x
  2. Step 2: Convert to fraction form
    668,336.30/922,352.98 = 381,850.26/x
  3. Step 3: Cross multiply
    668,336.30x = 922,352.98 × 381,850.26
  4. Step 4: Simplify right side
    668,336.30x = 352,200,725,224.78
  5. Step 5: Solve for x
    x = 352,200,725,224.78/668,336.30
  6. Step 6: Final answer
    x = 526,981.29

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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.