Finding the Fourth Proportional to 913,912.14, 1,261,238.15 and 506,013.96
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Solution
The fourth proportional to 913,912.14, 1,261,238.15 and 506,013.96 is: 698,321.08
Step by Step Solution
- Step 1: Write the proportion equation
913,912.14 : 1,261,238.15 = 506,013.96 : x - Step 2: Convert to fraction form
913,912.14/1,261,238.15 = 506,013.96/x - Step 3: Cross multiply
913,912.14x = 1,261,238.15 × 506,013.96 - Step 4: Simplify right side
913,912.14x = 638,204,110,784.57 - Step 5: Solve for x
x = 638,204,110,784.57/913,912.14 - Step 6: Final answer
x = 698,321.08
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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.