Home / 1,433,884.24-1,978,816.65-789,364.40

Finding the Fourth Proportional to 1,433,884.24, 1,978,816.65 and 789,364.40

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Solution

The fourth proportional to 1,433,884.24, 1,978,816.65 and 789,364.40 is: 1,089,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,884.24 : 1,978,816.65 = 789,364.40 : x
  2. Step 2: Convert to fraction form
    1,433,884.24/1,978,816.65 = 789,364.40/x
  3. Step 3: Cross multiply
    1,433,884.24x = 1,978,816.65 × 789,364.40
  4. Step 4: Simplify right side
    1,433,884.24x = 1,562,007,417,637.26
  5. Step 5: Solve for x
    x = 1,562,007,417,637.26/1,433,884.24
  6. Step 6: Final answer
    x = 1,089,353.92

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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.