Home / 2,905,999.80-4,359,003.21-1,389,326.10

Finding the Fourth Proportional to 2,905,999.80, 4,359,003.21 and 1,389,326.10

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Solution

The fourth proportional to 2,905,999.80, 4,359,003.21 and 1,389,326.10 is: 2,083,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905,999.80 : 4,359,003.21 = 1,389,326.10 : x
  2. Step 2: Convert to fraction form
    2,905,999.80/4,359,003.21 = 1,389,326.10/x
  3. Step 3: Cross multiply
    2,905,999.80x = 4,359,003.21 × 1,389,326.10
  4. Step 4: Simplify right side
    2,905,999.80x = 6,056,076,929,636.78
  5. Step 5: Solve for x
    x = 6,056,076,929,636.78/2,905,999.80
  6. Step 6: Final answer
    x = 2,083,990.83

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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.