Home / 768,558.26-1,152,879.44-319,324.55

Finding the Fourth Proportional to 768,558.26, 1,152,879.44 and 319,324.55

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Solution

The fourth proportional to 768,558.26, 1,152,879.44 and 319,324.55 is: 479,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,558.26 : 1,152,879.44 = 319,324.55 : x
  2. Step 2: Convert to fraction form
    768,558.26/1,152,879.44 = 319,324.55/x
  3. Step 3: Cross multiply
    768,558.26x = 1,152,879.44 × 319,324.55
  4. Step 4: Simplify right side
    768,558.26x = 368,142,710,865.30
  5. Step 5: Solve for x
    x = 368,142,710,865.30/768,558.26
  6. Step 6: Final answer
    x = 479,004.30

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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.