Home / 1,311,909.03-1,968,021.18-1,240,164.48

Finding the Fourth Proportional to 1,311,909.03, 1,968,021.18 and 1,240,164.48

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Solution

The fourth proportional to 1,311,909.03, 1,968,021.18 and 1,240,164.48 is: 1,860,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,909.03 : 1,968,021.18 = 1,240,164.48 : x
  2. Step 2: Convert to fraction form
    1,311,909.03/1,968,021.18 = 1,240,164.48/x
  3. Step 3: Cross multiply
    1,311,909.03x = 1,968,021.18 × 1,240,164.48
  4. Step 4: Simplify right side
    1,311,909.03x = 2,440,669,963,323.69
  5. Step 5: Solve for x
    x = 2,440,669,963,323.69/1,311,909.03
  6. Step 6: Final answer
    x = 1,860,395.73

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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.