Home / 3,980,686.72-5,962,277.94-3,289,742.86

Finding the Fourth Proportional to 3,980,686.72, 5,962,277.94 and 3,289,742.86

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Solution

The fourth proportional to 3,980,686.72, 5,962,277.94 and 3,289,742.86 is: 4,927,381.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,980,686.72 : 5,962,277.94 = 3,289,742.86 : x
  2. Step 2: Convert to fraction form
    3,980,686.72/5,962,277.94 = 3,289,742.86/x
  3. Step 3: Cross multiply
    3,980,686.72x = 5,962,277.94 × 3,289,742.86
  4. Step 4: Simplify right side
    3,980,686.72x = 19,614,361,282,450.51
  5. Step 5: Solve for x
    x = 19,614,361,282,450.51/3,980,686.72
  6. Step 6: Final answer
    x = 4,927,381.29

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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.