Home / 1,433,617.21-1,978,376.70-789,023.53

Finding the Fourth Proportional to 1,433,617.21, 1,978,376.70 and 789,023.53

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Solution

The fourth proportional to 1,433,617.21, 1,978,376.70 and 789,023.53 is: 1,088,844.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,617.21 : 1,978,376.70 = 789,023.53 : x
  2. Step 2: Convert to fraction form
    1,433,617.21/1,978,376.70 = 789,023.53/x
  3. Step 3: Cross multiply
    1,433,617.21x = 1,978,376.70 × 789,023.53
  4. Step 4: Simplify right side
    1,433,617.21x = 1,560,985,767,503.75
  5. Step 5: Solve for x
    x = 1,560,985,767,503.75/1,433,617.21
  6. Step 6: Final answer
    x = 1,088,844.19

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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.