Home / 1,433,911.65-1,978,797.51-789,328.50

Finding the Fourth Proportional to 1,433,911.65, 1,978,797.51 and 789,328.50

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Solution

The fourth proportional to 1,433,911.65, 1,978,797.51 and 789,328.50 is: 1,089,273.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,911.65 : 1,978,797.51 = 789,328.50 : x
  2. Step 2: Convert to fraction form
    1,433,911.65/1,978,797.51 = 789,328.50/x
  3. Step 3: Cross multiply
    1,433,911.65x = 1,978,797.51 × 789,328.50
  4. Step 4: Simplify right side
    1,433,911.65x = 1,561,921,270,372.04
  5. Step 5: Solve for x
    x = 1,561,921,270,372.04/1,433,911.65
  6. Step 6: Final answer
    x = 1,089,273.02

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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.