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Finding the Fourth Proportional to 664,094.80, 916,446.50 and 377,614.88

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Solution

The fourth proportional to 664,094.80, 916,446.50 and 377,614.88 is: 521,106.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,094.80 : 916,446.50 = 377,614.88 : x
  2. Step 2: Convert to fraction form
    664,094.80/916,446.50 = 377,614.88/x
  3. Step 3: Cross multiply
    664,094.80x = 916,446.50 × 377,614.88
  4. Step 4: Simplify right side
    664,094.80x = 346,063,835,123.92
  5. Step 5: Solve for x
    x = 346,063,835,123.92/664,094.80
  6. Step 6: Final answer
    x = 521,106.08

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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.