Home / 1,327,084.56-1,989,431.28-900,765.36

Finding the Fourth Proportional to 1,327,084.56, 1,989,431.28 and 900,765.36

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Solution

The fourth proportional to 1,327,084.56, 1,989,431.28 and 900,765.36 is: 1,350,336.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,084.56 : 1,989,431.28 = 900,765.36 : x
  2. Step 2: Convert to fraction form
    1,327,084.56/1,989,431.28 = 900,765.36/x
  3. Step 3: Cross multiply
    1,327,084.56x = 1,989,431.28 × 900,765.36
  4. Step 4: Simplify right side
    1,327,084.56x = 1,792,010,783,124.46
  5. Step 5: Solve for x
    x = 1,792,010,783,124.46/1,327,084.56
  6. Step 6: Final answer
    x = 1,350,336.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.