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Finding the Fourth Proportional to 668,739.05, 922,859.83 and 382,265.27

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Solution

The fourth proportional to 668,739.05, 922,859.83 and 382,265.27 is: 527,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,739.05 : 922,859.83 = 382,265.27 : x
  2. Step 2: Convert to fraction form
    668,739.05/922,859.83 = 382,265.27/x
  3. Step 3: Cross multiply
    668,739.05x = 922,859.83 × 382,265.27
  4. Step 4: Simplify right side
    668,739.05x = 352,777,262,087.10
  5. Step 5: Solve for x
    x = 352,777,262,087.10/668,739.05
  6. Step 6: Final answer
    x = 527,526.04

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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.