Home / 663,945.44-916,322.28-377,508.56

Finding the Fourth Proportional to 663,945.44, 916,322.28 and 377,508.56

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Solution

The fourth proportional to 663,945.44, 916,322.28 and 377,508.56 is: 521,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,945.44 : 916,322.28 = 377,508.56 : x
  2. Step 2: Convert to fraction form
    663,945.44/916,322.28 = 377,508.56/x
  3. Step 3: Cross multiply
    663,945.44x = 916,322.28 × 377,508.56
  4. Step 4: Simplify right side
    663,945.44x = 345,919,504,418.72
  5. Step 5: Solve for x
    x = 345,919,504,418.72/663,945.44
  6. Step 6: Final answer
    x = 521,005.92

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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.