Home / 535,374.45-738,878.49-320,514.39

Finding the Fourth Proportional to 535,374.45, 738,878.49 and 320,514.39

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Solution

The fourth proportional to 535,374.45, 738,878.49 and 320,514.39 is: 442,346.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,374.45 : 738,878.49 = 320,514.39 : x
  2. Step 2: Convert to fraction form
    535,374.45/738,878.49 = 320,514.39/x
  3. Step 3: Cross multiply
    535,374.45x = 738,878.49 × 320,514.39
  4. Step 4: Simplify right side
    535,374.45x = 236,821,188,506.47
  5. Step 5: Solve for x
    x = 236,821,188,506.47/535,374.45
  6. Step 6: Final answer
    x = 442,346.83

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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.