Home / 809,419.61-1,117,000.70-446,843.96

Finding the Fourth Proportional to 809,419.61, 1,117,000.70 and 446,843.96

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Solution

The fourth proportional to 809,419.61, 1,117,000.70 and 446,843.96 is: 616,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,419.61 : 1,117,000.70 = 446,843.96 : x
  2. Step 2: Convert to fraction form
    809,419.61/1,117,000.70 = 446,843.96/x
  3. Step 3: Cross multiply
    809,419.61x = 1,117,000.70 × 446,843.96
  4. Step 4: Simplify right side
    809,419.61x = 499,125,008,291.55
  5. Step 5: Solve for x
    x = 499,125,008,291.55/809,419.61
  6. Step 6: Final answer
    x = 616,645.56

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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.