Home / 3,129,308.40-4,696,989.84-1,511,211.36

Finding the Fourth Proportional to 3,129,308.40, 4,696,989.84 and 1,511,211.36

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Solution

The fourth proportional to 3,129,308.40, 4,696,989.84 and 1,511,211.36 is: 2,268,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,308.40 : 4,696,989.84 = 1,511,211.36 : x
  2. Step 2: Convert to fraction form
    3,129,308.40/4,696,989.84 = 1,511,211.36/x
  3. Step 3: Cross multiply
    3,129,308.40x = 4,696,989.84 × 1,511,211.36
  4. Step 4: Simplify right side
    3,129,308.40x = 7,098,144,404,012.58
  5. Step 5: Solve for x
    x = 7,098,144,404,012.58/3,129,308.40
  6. Step 6: Final answer
    x = 2,268,278.96

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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.