Finding the Fourth Proportional to 862,638.05, 1,294,197.06 and 376,362.74
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Solution
The fourth proportional to 862,638.05, 1,294,197.06 and 376,362.74 is: 564,648.81
Step by Step Solution
- Step 1: Write the proportion equation
862,638.05 : 1,294,197.06 = 376,362.74 : x - Step 2: Convert to fraction form
862,638.05/1,294,197.06 = 376,362.74/x - Step 3: Cross multiply
862,638.05x = 1,294,197.06 × 376,362.74 - Step 4: Simplify right side
862,638.05x = 487,087,551,601.54 - Step 5: Solve for x
x = 487,087,551,601.54/862,638.05 - Step 6: Final answer
x = 564,648.81
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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.