Home / 1,273,609.86-1,756,586.61-789,903.78

Finding the Fourth Proportional to 1,273,609.86, 1,756,586.61 and 789,903.78

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Solution

The fourth proportional to 1,273,609.86, 1,756,586.61 and 789,903.78 is: 1,089,450.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,609.86 : 1,756,586.61 = 789,903.78 : x
  2. Step 2: Convert to fraction form
    1,273,609.86/1,756,586.61 = 789,903.78/x
  3. Step 3: Cross multiply
    1,273,609.86x = 1,756,586.61 × 789,903.78
  4. Step 4: Simplify right side
    1,273,609.86x = 1,387,534,403,136.39
  5. Step 5: Solve for x
    x = 1,387,534,403,136.39/1,273,609.86
  6. Step 6: Final answer
    x = 1,089,450.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.