Home / 716,942.82-988,828.47-445,171.62

Finding the Fourth Proportional to 716,942.82, 988,828.47 and 445,171.62

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Solution

The fourth proportional to 716,942.82, 988,828.47 and 445,171.62 is: 613,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,942.82 : 988,828.47 = 445,171.62 : x
  2. Step 2: Convert to fraction form
    716,942.82/988,828.47 = 445,171.62/x
  3. Step 3: Cross multiply
    716,942.82x = 988,828.47 × 445,171.62
  4. Step 4: Simplify right side
    716,942.82x = 440,198,371,892.02
  5. Step 5: Solve for x
    x = 440,198,371,892.02/716,942.82
  6. Step 6: Final answer
    x = 613,993.70

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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.