Home / 819,840.50-1,131,379.89-462,144.50

Finding the Fourth Proportional to 819,840.50, 1,131,379.89 and 462,144.50

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Solution

The fourth proportional to 819,840.50, 1,131,379.89 and 462,144.50 is: 637,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,840.50 : 1,131,379.89 = 462,144.50 : x
  2. Step 2: Convert to fraction form
    819,840.50/1,131,379.89 = 462,144.50/x
  3. Step 3: Cross multiply
    819,840.50x = 1,131,379.89 × 462,144.50
  4. Step 4: Simplify right side
    819,840.50x = 522,860,993,574.11
  5. Step 5: Solve for x
    x = 522,860,993,574.11/819,840.50
  6. Step 6: Final answer
    x = 637,759.41

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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.