Home / 807,420.31-1,211,367.31-238,816.41

Finding the Fourth Proportional to 807,420.31, 1,211,367.31 and 238,816.41

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Solution

The fourth proportional to 807,420.31, 1,211,367.31 and 238,816.41 is: 358,294.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,420.31 : 1,211,367.31 = 238,816.41 : x
  2. Step 2: Convert to fraction form
    807,420.31/1,211,367.31 = 238,816.41/x
  3. Step 3: Cross multiply
    807,420.31x = 1,211,367.31 × 238,816.41
  4. Step 4: Simplify right side
    807,420.31x = 289,294,388,369.23
  5. Step 5: Solve for x
    x = 289,294,388,369.23/807,420.31
  6. Step 6: Final answer
    x = 358,294.66

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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.