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Finding the Fourth Proportional to 664,468.20, 917,053.74 and 377,932.95

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Solution

The fourth proportional to 664,468.20, 917,053.74 and 377,932.95 is: 521,597.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,468.20 : 917,053.74 = 377,932.95 : x
  2. Step 2: Convert to fraction form
    664,468.20/917,053.74 = 377,932.95/x
  3. Step 3: Cross multiply
    664,468.20x = 917,053.74 × 377,932.95
  4. Step 4: Simplify right side
    664,468.20x = 346,584,825,266.73
  5. Step 5: Solve for x
    x = 346,584,825,266.73/664,468.20
  6. Step 6: Final answer
    x = 521,597.31

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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.