Home / 3,914,814.40-5,872,221.60-3,631,379.20

Finding the Fourth Proportional to 3,914,814.40, 5,872,221.60 and 3,631,379.20

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Solution

The fourth proportional to 3,914,814.40, 5,872,221.60 and 3,631,379.20 is: 5,447,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914,814.40 : 5,872,221.60 = 3,631,379.20 : x
  2. Step 2: Convert to fraction form
    3,914,814.40/5,872,221.60 = 3,631,379.20/x
  3. Step 3: Cross multiply
    3,914,814.40x = 5,872,221.60 × 3,631,379.20
  4. Step 4: Simplify right side
    3,914,814.40x = 21,324,263,376,030.72
  5. Step 5: Solve for x
    x = 21,324,263,376,030.72/3,914,814.40
  6. Step 6: Final answer
    x = 5,447,068.80

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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.