Home / 664,091.80-916,442.37-377,611.88

Finding the Fourth Proportional to 664,091.80, 916,442.37 and 377,611.88

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Solution

The fourth proportional to 664,091.80, 916,442.37 and 377,611.88 is: 521,101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,091.80 : 916,442.37 = 377,611.88 : x
  2. Step 2: Convert to fraction form
    664,091.80/916,442.37 = 377,611.88/x
  3. Step 3: Cross multiply
    664,091.80x = 916,442.37 × 377,611.88
  4. Step 4: Simplify right side
    664,091.80x = 346,059,521,665.14
  5. Step 5: Solve for x
    x = 346,059,521,665.14/664,091.80
  6. Step 6: Final answer
    x = 521,101.94

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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.