Home / 815,488.63-1,125,388.22-447,981.26

Finding the Fourth Proportional to 815,488.63, 1,125,388.22 and 447,981.26

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Solution

The fourth proportional to 815,488.63, 1,125,388.22 and 447,981.26 is: 618,221.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,488.63 : 1,125,388.22 = 447,981.26 : x
  2. Step 2: Convert to fraction form
    815,488.63/1,125,388.22 = 447,981.26/x
  3. Step 3: Cross multiply
    815,488.63x = 1,125,388.22 × 447,981.26
  4. Step 4: Simplify right side
    815,488.63x = 504,152,832,784.76
  5. Step 5: Solve for x
    x = 504,152,832,784.76/815,488.63
  6. Step 6: Final answer
    x = 618,221.78

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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.