Home / 1,392,791.72-2,089,373.47-551,146.64

Finding the Fourth Proportional to 1,392,791.72, 2,089,373.47 and 551,146.64

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Solution

The fourth proportional to 1,392,791.72, 2,089,373.47 and 551,146.64 is: 826,793.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,791.72 : 2,089,373.47 = 551,146.64 : x
  2. Step 2: Convert to fraction form
    1,392,791.72/2,089,373.47 = 551,146.64/x
  3. Step 3: Cross multiply
    1,392,791.72x = 2,089,373.47 × 551,146.64
  4. Step 4: Simplify right side
    1,392,791.72x = 1,151,551,155,870.91
  5. Step 5: Solve for x
    x = 1,151,551,155,870.91/1,392,791.72
  6. Step 6: Final answer
    x = 826,793.51

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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.