Home / 3,419,208.60-5,128,812.90-1,424,405.40

Finding the Fourth Proportional to 3,419,208.60, 5,128,812.90 and 1,424,405.40

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Solution

The fourth proportional to 3,419,208.60, 5,128,812.90 and 1,424,405.40 is: 2,136,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,208.60 : 5,128,812.90 = 1,424,405.40 : x
  2. Step 2: Convert to fraction form
    3,419,208.60/5,128,812.90 = 1,424,405.40/x
  3. Step 3: Cross multiply
    3,419,208.60x = 5,128,812.90 × 1,424,405.40
  4. Step 4: Simplify right side
    3,419,208.60x = 7,305,508,790,349.66
  5. Step 5: Solve for x
    x = 7,305,508,790,349.66/3,419,208.60
  6. Step 6: Final answer
    x = 2,136,608.10

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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.