Home / 672,824-1,009,430.82-199,520.78

Finding the Fourth Proportional to 672,824, 1,009,430.82 and 199,520.78

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Solution

The fourth proportional to 672,824, 1,009,430.82 and 199,520.78 is: 299,338.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,824 : 1,009,430.82 = 199,520.78 : x
  2. Step 2: Convert to fraction form
    672,824/1,009,430.82 = 199,520.78/x
  3. Step 3: Cross multiply
    672,824x = 1,009,430.82 × 199,520.78
  4. Step 4: Simplify right side
    672,824x = 201,402,424,562.44
  5. Step 5: Solve for x
    x = 201,402,424,562.44/672,824
  6. Step 6: Final answer
    x = 299,338.94

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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.