Home / 820,935-1,132,879.57-458,365.03

Finding the Fourth Proportional to 820,935, 1,132,879.57 and 458,365.03

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Solution

The fourth proportional to 820,935, 1,132,879.57 and 458,365.03 is: 632,537.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,935 : 1,132,879.57 = 458,365.03 : x
  2. Step 2: Convert to fraction form
    820,935/1,132,879.57 = 458,365.03/x
  3. Step 3: Cross multiply
    820,935x = 1,132,879.57 × 458,365.03
  4. Step 4: Simplify right side
    820,935x = 519,272,378,089.44
  5. Step 5: Solve for x
    x = 519,272,378,089.44/820,935
  6. Step 6: Final answer
    x = 632,537.75

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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.