Home / 1,089,236.36-1,632,359.80-689,160.94

Finding the Fourth Proportional to 1,089,236.36, 1,632,359.80 and 689,160.94

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Solution

The fourth proportional to 1,089,236.36, 1,632,359.80 and 689,160.94 is: 1,032,795.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,236.36 : 1,632,359.80 = 689,160.94 : x
  2. Step 2: Convert to fraction form
    1,089,236.36/1,632,359.80 = 689,160.94/x
  3. Step 3: Cross multiply
    1,089,236.36x = 1,632,359.80 × 689,160.94
  4. Step 4: Simplify right side
    1,089,236.36x = 1,124,958,610,966.76
  5. Step 5: Solve for x
    x = 1,124,958,610,966.76/1,089,236.36
  6. Step 6: Final answer
    x = 1,032,795.68

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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.