Finding the Fourth Proportional to 913,278.79, 1,364,318.09 and 658,383.94
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Solution
The fourth proportional to 913,278.79, 1,364,318.09 and 658,383.94 is: 983,538.79
Step by Step Solution
- Step 1: Write the proportion equation
913,278.79 : 1,364,318.09 = 658,383.94 : x - Step 2: Convert to fraction form
913,278.79/1,364,318.09 = 658,383.94/x - Step 3: Cross multiply
913,278.79x = 1,364,318.09 × 658,383.94 - Step 4: Simplify right side
913,278.79x = 898,245,119,507.48 - Step 5: Solve for x
x = 898,245,119,507.48/913,278.79 - Step 6: Final answer
x = 983,538.79
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.