Home / 5,191,200.90-7,786,801.35-1,404,683.78

Finding the Fourth Proportional to 5,191,200.90, 7,786,801.35 and 1,404,683.78

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Solution

The fourth proportional to 5,191,200.90, 7,786,801.35 and 1,404,683.78 is: 2,107,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,191,200.90 : 7,786,801.35 = 1,404,683.78 : x
  2. Step 2: Convert to fraction form
    5,191,200.90/7,786,801.35 = 1,404,683.78/x
  3. Step 3: Cross multiply
    5,191,200.90x = 7,786,801.35 × 1,404,683.78
  4. Step 4: Simplify right side
    5,191,200.90x = 10,937,993,515,493.10
  5. Step 5: Solve for x
    x = 10,937,993,515,493.10/5,191,200.90
  6. Step 6: Final answer
    x = 2,107,025.66

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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.