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Finding the Fourth Proportional to 664,104.96, 916,427.52 and 377,694.72

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Solution

The fourth proportional to 664,104.96, 916,427.52 and 377,694.72 is: 521,197.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,104.96 : 916,427.52 = 377,694.72 : x
  2. Step 2: Convert to fraction form
    664,104.96/916,427.52 = 377,694.72/x
  3. Step 3: Cross multiply
    664,104.96x = 916,427.52 × 377,694.72
  4. Step 4: Simplify right side
    664,104.96x = 346,129,835,566.69
  5. Step 5: Solve for x
    x = 346,129,835,566.69/664,104.96
  6. Step 6: Final answer
    x = 521,197.49

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1.5x scale

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.