Home / 853,493.79-1,177,989.56-509,157.37

Finding the Fourth Proportional to 853,493.79, 1,177,989.56 and 509,157.37

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Solution

The fourth proportional to 853,493.79, 1,177,989.56 and 509,157.37 is: 702,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,493.79 : 1,177,989.56 = 509,157.37 : x
  2. Step 2: Convert to fraction form
    853,493.79/1,177,989.56 = 509,157.37/x
  3. Step 3: Cross multiply
    853,493.79x = 1,177,989.56 × 509,157.37
  4. Step 4: Simplify right side
    853,493.79x = 599,782,062,348.00
  5. Step 5: Solve for x
    x = 599,782,062,348.00/853,493.79
  6. Step 6: Final answer
    x = 702,737.47

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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.