Home / 2,518,471.86-3,778,820.74-1,320,107.64

Finding the Fourth Proportional to 2,518,471.86, 3,778,820.74 and 1,320,107.64

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Solution

The fourth proportional to 2,518,471.86, 3,778,820.74 and 1,320,107.64 is: 1,980,744.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,518,471.86 : 3,778,820.74 = 1,320,107.64 : x
  2. Step 2: Convert to fraction form
    2,518,471.86/3,778,820.74 = 1,320,107.64/x
  3. Step 3: Cross multiply
    2,518,471.86x = 3,778,820.74 × 1,320,107.64
  4. Step 4: Simplify right side
    2,518,471.86x = 4,988,450,129,064.45
  5. Step 5: Solve for x
    x = 4,988,450,129,064.45/2,518,471.86
  6. Step 6: Final answer
    x = 1,980,744.84

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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.