Home / 5,265,120.78-7,898,025.62-1,621,403.82

Finding the Fourth Proportional to 5,265,120.78, 7,898,025.62 and 1,621,403.82

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Solution

The fourth proportional to 5,265,120.78, 7,898,025.62 and 1,621,403.82 is: 2,432,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,265,120.78 : 7,898,025.62 = 1,621,403.82 : x
  2. Step 2: Convert to fraction form
    5,265,120.78/7,898,025.62 = 1,621,403.82/x
  3. Step 3: Cross multiply
    5,265,120.78x = 7,898,025.62 × 1,621,403.82
  4. Step 4: Simplify right side
    5,265,120.78x = 12,805,888,902,618.85
  5. Step 5: Solve for x
    x = 12,805,888,902,618.85/5,265,120.78
  6. Step 6: Final answer
    x = 2,432,211.80

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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.