Home / 825,441.60-1,237,954.56-319,829.04

Finding the Fourth Proportional to 825,441.60, 1,237,954.56 and 319,829.04

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Solution

The fourth proportional to 825,441.60, 1,237,954.56 and 319,829.04 is: 479,663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,441.60 : 1,237,954.56 = 319,829.04 : x
  2. Step 2: Convert to fraction form
    825,441.60/1,237,954.56 = 319,829.04/x
  3. Step 3: Cross multiply
    825,441.60x = 1,237,954.56 × 319,829.04
  4. Step 4: Simplify right side
    825,441.60x = 395,933,818,488.42
  5. Step 5: Solve for x
    x = 395,933,818,488.42/825,441.60
  6. Step 6: Final answer
    x = 479,663.03

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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.