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Finding the Fourth Proportional to 668,852.97, 922,715.73 and 396,932.33

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Solution

The fourth proportional to 668,852.97, 922,715.73 and 396,932.33 is: 547,587.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,852.97 : 922,715.73 = 396,932.33 : x
  2. Step 2: Convert to fraction form
    668,852.97/922,715.73 = 396,932.33/x
  3. Step 3: Cross multiply
    668,852.97x = 922,715.73 × 396,932.33
  4. Step 4: Simplify right side
    668,852.97x = 366,255,700,022.97
  5. Step 5: Solve for x
    x = 366,255,700,022.97/668,852.97
  6. Step 6: Final answer
    x = 547,587.76

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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.