Home / 1,434,089.80-1,979,012.78-789,485.32

Finding the Fourth Proportional to 1,434,089.80, 1,979,012.78 and 789,485.32

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Solution

The fourth proportional to 1,434,089.80, 1,979,012.78 and 789,485.32 is: 1,089,472.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,089.80 : 1,979,012.78 = 789,485.32 : x
  2. Step 2: Convert to fraction form
    1,434,089.80/1,979,012.78 = 789,485.32/x
  3. Step 3: Cross multiply
    1,434,089.80x = 1,979,012.78 × 789,485.32
  4. Step 4: Simplify right side
    1,434,089.80x = 1,562,401,537,902.39
  5. Step 5: Solve for x
    x = 1,562,401,537,902.39/1,434,089.80
  6. Step 6: Final answer
    x = 1,089,472.60

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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.