Home / 1,392,792.03-2,089,188.72-919,366.74

Finding the Fourth Proportional to 1,392,792.03, 2,089,188.72 and 919,366.74

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Solution

The fourth proportional to 1,392,792.03, 2,089,188.72 and 919,366.74 is: 1,379,050.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,792.03 : 2,089,188.72 = 919,366.74 : x
  2. Step 2: Convert to fraction form
    1,392,792.03/2,089,188.72 = 919,366.74/x
  3. Step 3: Cross multiply
    1,392,792.03x = 2,089,188.72 × 919,366.74
  4. Step 4: Simplify right side
    1,392,792.03x = 1,920,730,622,751.17
  5. Step 5: Solve for x
    x = 1,920,730,622,751.17/1,392,792.03
  6. Step 6: Final answer
    x = 1,379,050.56

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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.