Home / 1,433,718.30-1,978,515.60-789,124.62

Finding the Fourth Proportional to 1,433,718.30, 1,978,515.60 and 789,124.62

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Solution

The fourth proportional to 1,433,718.30, 1,978,515.60 and 789,124.62 is: 1,088,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,718.30 : 1,978,515.60 = 789,124.62 : x
  2. Step 2: Convert to fraction form
    1,433,718.30/1,978,515.60 = 789,124.62/x
  3. Step 3: Cross multiply
    1,433,718.30x = 1,978,515.60 × 789,124.62
  4. Step 4: Simplify right side
    1,433,718.30x = 1,561,295,371,014.07
  5. Step 5: Solve for x
    x = 1,561,295,371,014.07/1,433,718.30
  6. Step 6: Final answer
    x = 1,088,983.36

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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.