Home / 1,311,893.34-1,967,997.69-1,240,148.80

Finding the Fourth Proportional to 1,311,893.34, 1,967,997.69 and 1,240,148.80

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Solution

The fourth proportional to 1,311,893.34, 1,967,997.69 and 1,240,148.80 is: 1,860,372.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,893.34 : 1,967,997.69 = 1,240,148.80 : x
  2. Step 2: Convert to fraction form
    1,311,893.34/1,967,997.69 = 1,240,148.80/x
  3. Step 3: Cross multiply
    1,311,893.34x = 1,967,997.69 × 1,240,148.80
  4. Step 4: Simplify right side
    1,311,893.34x = 2,440,609,985,139.18
  5. Step 5: Solve for x
    x = 2,440,609,985,139.18/1,311,893.34
  6. Step 6: Final answer
    x = 1,860,372.27

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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.