Home / 1,727,999.80-2,591,999.70-1,280,102.20

Finding the Fourth Proportional to 1,727,999.80, 2,591,999.70 and 1,280,102.20

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Solution

The fourth proportional to 1,727,999.80, 2,591,999.70 and 1,280,102.20 is: 1,920,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,727,999.80 : 2,591,999.70 = 1,280,102.20 : x
  2. Step 2: Convert to fraction form
    1,727,999.80/2,591,999.70 = 1,280,102.20/x
  3. Step 3: Cross multiply
    1,727,999.80x = 2,591,999.70 × 1,280,102.20
  4. Step 4: Simplify right side
    1,727,999.80x = 3,318,024,518,369.34
  5. Step 5: Solve for x
    x = 3,318,024,518,369.34/1,727,999.80
  6. Step 6: Final answer
    x = 1,920,153.30

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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.