Home / 941,428.54-1,299,139.59-538,942.78

Finding the Fourth Proportional to 941,428.54, 1,299,139.59 and 538,942.78

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Solution

The fourth proportional to 941,428.54, 1,299,139.59 and 538,942.78 is: 743,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    941,428.54 : 1,299,139.59 = 538,942.78 : x
  2. Step 2: Convert to fraction form
    941,428.54/1,299,139.59 = 538,942.78/x
  3. Step 3: Cross multiply
    941,428.54x = 1,299,139.59 × 538,942.78
  4. Step 4: Simplify right side
    941,428.54x = 700,161,902,242.66
  5. Step 5: Solve for x
    x = 700,161,902,242.66/941,428.54
  6. Step 6: Final answer
    x = 743,722.83

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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.