Home / 2,089,950.70-3,131,973.60-1,288,852.60

Finding the Fourth Proportional to 2,089,950.70, 3,131,973.60 and 1,288,852.60

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Solution

The fourth proportional to 2,089,950.70, 3,131,973.60 and 1,288,852.60 is: 1,931,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089,950.70 : 3,131,973.60 = 1,288,852.60 : x
  2. Step 2: Convert to fraction form
    2,089,950.70/3,131,973.60 = 1,288,852.60/x
  3. Step 3: Cross multiply
    2,089,950.70x = 3,131,973.60 × 1,288,852.60
  4. Step 4: Simplify right side
    2,089,950.70x = 4,036,652,317,491.36
  5. Step 5: Solve for x
    x = 4,036,652,317,491.36/2,089,950.70
  6. Step 6: Final answer
    x = 1,931,458.15

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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.