Home / 2,931,965.40-4,394,448.90-1,511,290.20

Finding the Fourth Proportional to 2,931,965.40, 4,394,448.90 and 1,511,290.20

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Solution

The fourth proportional to 2,931,965.40, 4,394,448.90 and 1,511,290.20 is: 2,265,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931,965.40 : 4,394,448.90 = 1,511,290.20 : x
  2. Step 2: Convert to fraction form
    2,931,965.40/4,394,448.90 = 1,511,290.20/x
  3. Step 3: Cross multiply
    2,931,965.40x = 4,394,448.90 × 1,511,290.20
  4. Step 4: Simplify right side
    2,931,965.40x = 6,641,287,556,970.78
  5. Step 5: Solve for x
    x = 6,641,287,556,970.78/2,931,965.40
  6. Step 6: Final answer
    x = 2,265,131.63

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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.