Home / 831,270.69-1,244,653.76-431,072.26

Finding the Fourth Proportional to 831,270.69, 1,244,653.76 and 431,072.26

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Solution

The fourth proportional to 831,270.69, 1,244,653.76 and 431,072.26 is: 645,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,270.69 : 1,244,653.76 = 431,072.26 : x
  2. Step 2: Convert to fraction form
    831,270.69/1,244,653.76 = 431,072.26/x
  3. Step 3: Cross multiply
    831,270.69x = 1,244,653.76 × 431,072.26
  4. Step 4: Simplify right side
    831,270.69x = 536,535,707,206.74
  5. Step 5: Solve for x
    x = 536,535,707,206.74/831,270.69
  6. Step 6: Final answer
    x = 645,440.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.