Home / 2,603,999.20-3,905,998.80-921,272.80

Finding the Fourth Proportional to 2,603,999.20, 3,905,998.80 and 921,272.80

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Solution

The fourth proportional to 2,603,999.20, 3,905,998.80 and 921,272.80 is: 1,381,909.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,603,999.20 : 3,905,998.80 = 921,272.80 : x
  2. Step 2: Convert to fraction form
    2,603,999.20/3,905,998.80 = 921,272.80/x
  3. Step 3: Cross multiply
    2,603,999.20x = 3,905,998.80 × 921,272.80
  4. Step 4: Simplify right side
    2,603,999.20x = 3,598,490,451,272.64
  5. Step 5: Solve for x
    x = 3,598,490,451,272.64/2,603,999.20
  6. Step 6: Final answer
    x = 1,381,909.20

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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.