Home / 809,503.78-1,117,092.98-446,921.05

Finding the Fourth Proportional to 809,503.78, 1,117,092.98 and 446,921.05

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Solution

The fourth proportional to 809,503.78, 1,117,092.98 and 446,921.05 is: 616,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,503.78 : 1,117,092.98 = 446,921.05 : x
  2. Step 2: Convert to fraction form
    809,503.78/1,117,092.98 = 446,921.05/x
  3. Step 3: Cross multiply
    809,503.78x = 1,117,092.98 × 446,921.05
  4. Step 4: Simplify right side
    809,503.78x = 499,252,359,749.16
  5. Step 5: Solve for x
    x = 499,252,359,749.16/809,503.78
  6. Step 6: Final answer
    x = 616,738.77

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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.