Home / 1,434,087.80-1,979,010.02-789,483.32

Finding the Fourth Proportional to 1,434,087.80, 1,979,010.02 and 789,483.32

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Solution

The fourth proportional to 1,434,087.80, 1,979,010.02 and 789,483.32 is: 1,089,469.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,087.80 : 1,979,010.02 = 789,483.32 : x
  2. Step 2: Convert to fraction form
    1,434,087.80/1,979,010.02 = 789,483.32/x
  3. Step 3: Cross multiply
    1,434,087.80x = 1,979,010.02 × 789,483.32
  4. Step 4: Simplify right side
    1,434,087.80x = 1,562,395,400,902.87
  5. Step 5: Solve for x
    x = 1,562,395,400,902.87/1,434,087.80
  6. Step 6: Final answer
    x = 1,089,469.84

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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.