Home / 3,126,009.20-4,689,013.80-1,866,297.20

Finding the Fourth Proportional to 3,126,009.20, 4,689,013.80 and 1,866,297.20

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Solution

The fourth proportional to 3,126,009.20, 4,689,013.80 and 1,866,297.20 is: 2,799,445.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126,009.20 : 4,689,013.80 = 1,866,297.20 : x
  2. Step 2: Convert to fraction form
    3,126,009.20/4,689,013.80 = 1,866,297.20/x
  3. Step 3: Cross multiply
    3,126,009.20x = 4,689,013.80 × 1,866,297.20
  4. Step 4: Simplify right side
    3,126,009.20x = 8,751,093,325,701.36
  5. Step 5: Solve for x
    x = 8,751,093,325,701.36/3,126,009.20
  6. Step 6: Final answer
    x = 2,799,445.80

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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.