Home / 815,199.42-1,222,954.45-328,920.14

Finding the Fourth Proportional to 815,199.42, 1,222,954.45 and 328,920.14

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Solution

The fourth proportional to 815,199.42, 1,222,954.45 and 328,920.14 is: 493,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,199.42 : 1,222,954.45 = 328,920.14 : x
  2. Step 2: Convert to fraction form
    815,199.42/1,222,954.45 = 328,920.14/x
  3. Step 3: Cross multiply
    815,199.42x = 1,222,954.45 × 328,920.14
  4. Step 4: Simplify right side
    815,199.42x = 402,254,352,992.89
  5. Step 5: Solve for x
    x = 402,254,352,992.89/815,199.42
  6. Step 6: Final answer
    x = 493,442.88

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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.