Home / 1,185,687.89-1,777,442.01-427,343.76

Finding the Fourth Proportional to 1,185,687.89, 1,777,442.01 and 427,343.76

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Solution

The fourth proportional to 1,185,687.89, 1,777,442.01 and 427,343.76 is: 640,622.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,687.89 : 1,777,442.01 = 427,343.76 : x
  2. Step 2: Convert to fraction form
    1,185,687.89/1,777,442.01 = 427,343.76/x
  3. Step 3: Cross multiply
    1,185,687.89x = 1,777,442.01 × 427,343.76
  4. Step 4: Simplify right side
    1,185,687.89x = 759,578,751,735.36
  5. Step 5: Solve for x
    x = 759,578,751,735.36/1,185,687.89
  6. Step 6: Final answer
    x = 640,622.85

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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.