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Finding the Fourth Proportional to 1,362,378, 1,880,139.96 and 758,766

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Solution

The fourth proportional to 1,362,378, 1,880,139.96 and 758,766 is: 1,047,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,378 : 1,880,139.96 = 758,766 : x
  2. Step 2: Convert to fraction form
    1,362,378/1,880,139.96 = 758,766/x
  3. Step 3: Cross multiply
    1,362,378x = 1,880,139.96 × 758,766
  4. Step 4: Simplify right side
    1,362,378x = 1,426,586,276,889.36
  5. Step 5: Solve for x
    x = 1,426,586,276,889.36/1,362,378
  6. Step 6: Final answer
    x = 1,047,129.56

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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.