Home / 1,311,261.86-1,809,670.92-767,365.22

Finding the Fourth Proportional to 1,311,261.86, 1,809,670.92 and 767,365.22

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Solution

The fourth proportional to 1,311,261.86, 1,809,670.92 and 767,365.22 is: 1,059,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,261.86 : 1,809,670.92 = 767,365.22 : x
  2. Step 2: Convert to fraction form
    1,311,261.86/1,809,670.92 = 767,365.22/x
  3. Step 3: Cross multiply
    1,311,261.86x = 1,809,670.92 × 767,365.22
  4. Step 4: Simplify right side
    1,311,261.86x = 1,388,678,523,653.40
  5. Step 5: Solve for x
    x = 1,388,678,523,653.40/1,311,261.86
  6. Step 6: Final answer
    x = 1,059,039.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.