Home / 1,152,317.72-1,589,018.64-764,996.78

Finding the Fourth Proportional to 1,152,317.72, 1,589,018.64 and 764,996.78

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Solution

The fourth proportional to 1,152,317.72, 1,589,018.64 and 764,996.78 is: 1,054,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,317.72 : 1,589,018.64 = 764,996.78 : x
  2. Step 2: Convert to fraction form
    1,152,317.72/1,589,018.64 = 764,996.78/x
  3. Step 3: Cross multiply
    1,152,317.72x = 1,589,018.64 × 764,996.78
  4. Step 4: Simplify right side
    1,152,317.72x = 1,215,594,142,959.98
  5. Step 5: Solve for x
    x = 1,215,594,142,959.98/1,152,317.72
  6. Step 6: Final answer
    x = 1,054,912.31

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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.