Home / 2,662,683.90-3,991,401.45-1,313,742.30

Finding the Fourth Proportional to 2,662,683.90, 3,991,401.45 and 1,313,742.30

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Solution

The fourth proportional to 2,662,683.90, 3,991,401.45 and 1,313,742.30 is: 1,969,318.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,683.90 : 3,991,401.45 = 1,313,742.30 : x
  2. Step 2: Convert to fraction form
    2,662,683.90/3,991,401.45 = 1,313,742.30/x
  3. Step 3: Cross multiply
    2,662,683.90x = 3,991,401.45 × 1,313,742.30
  4. Step 4: Simplify right side
    2,662,683.90x = 5,243,672,921,146.34
  5. Step 5: Solve for x
    x = 5,243,672,921,146.34/2,662,683.90
  6. Step 6: Final answer
    x = 1,969,318.60

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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.