Home / 1,379,619-1,903,835.20-767,762

Finding the Fourth Proportional to 1,379,619, 1,903,835.20 and 767,762

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Solution

The fourth proportional to 1,379,619, 1,903,835.20 and 767,762 is: 1,059,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,619 : 1,903,835.20 = 767,762 : x
  2. Step 2: Convert to fraction form
    1,379,619/1,903,835.20 = 767,762/x
  3. Step 3: Cross multiply
    1,379,619x = 1,903,835.20 × 767,762
  4. Step 4: Simplify right side
    1,379,619x = 1,461,692,320,822.40
  5. Step 5: Solve for x
    x = 1,461,692,320,822.40/1,379,619
  6. Step 6: Final answer
    x = 1,059,489.85

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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.