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Finding the Fourth Proportional to 668,749.80, 922,874.68 and 382,276.04

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Solution

The fourth proportional to 668,749.80, 922,874.68 and 382,276.04 is: 527,540.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,749.80 : 922,874.68 = 382,276.04 : x
  2. Step 2: Convert to fraction form
    668,749.80/922,874.68 = 382,276.04/x
  3. Step 3: Cross multiply
    668,749.80x = 922,874.68 × 382,276.04
  4. Step 4: Simplify right side
    668,749.80x = 352,792,878,086.67
  5. Step 5: Solve for x
    x = 352,792,878,086.67/668,749.80
  6. Step 6: Final answer
    x = 527,540.91

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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.