Home / 1,255,999.90-1,883,999.85-1,212,697.30

Finding the Fourth Proportional to 1,255,999.90, 1,883,999.85 and 1,212,697.30

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Solution

The fourth proportional to 1,255,999.90, 1,883,999.85 and 1,212,697.30 is: 1,819,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255,999.90 : 1,883,999.85 = 1,212,697.30 : x
  2. Step 2: Convert to fraction form
    1,255,999.90/1,883,999.85 = 1,212,697.30/x
  3. Step 3: Cross multiply
    1,255,999.90x = 1,883,999.85 × 1,212,697.30
  4. Step 4: Simplify right side
    1,255,999.90x = 2,284,721,531,295.41
  5. Step 5: Solve for x
    x = 2,284,721,531,295.41/1,255,999.90
  6. Step 6: Final answer
    x = 1,819,045.95

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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.