Home / 1,273,380.72-1,756,269.54-789,672.48

Finding the Fourth Proportional to 1,273,380.72, 1,756,269.54 and 789,672.48

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Solution

The fourth proportional to 1,273,380.72, 1,756,269.54 and 789,672.48 is: 1,089,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,273,380.72 : 1,756,269.54 = 789,672.48 : x
  2. Step 2: Convert to fraction form
    1,273,380.72/1,756,269.54 = 789,672.48/x
  3. Step 3: Cross multiply
    1,273,380.72x = 1,756,269.54 × 789,672.48
  4. Step 4: Simplify right side
    1,273,380.72x = 1,386,877,723,200.26
  5. Step 5: Solve for x
    x = 1,386,877,723,200.26/1,273,380.72
  6. Step 6: Final answer
    x = 1,089,130.46

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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.