Home / 1,392,778.53-2,089,168.47-919,353.24

Finding the Fourth Proportional to 1,392,778.53, 2,089,168.47 and 919,353.24

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Solution

The fourth proportional to 1,392,778.53, 2,089,168.47 and 919,353.24 is: 1,379,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,778.53 : 2,089,168.47 = 919,353.24 : x
  2. Step 2: Convert to fraction form
    1,392,778.53/2,089,168.47 = 919,353.24/x
  3. Step 3: Cross multiply
    1,392,778.53x = 2,089,168.47 × 919,353.24
  4. Step 4: Simplify right side
    1,392,778.53x = 1,920,683,801,800.34
  5. Step 5: Solve for x
    x = 1,920,683,801,800.34/1,392,778.53
  6. Step 6: Final answer
    x = 1,379,030.31

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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.