Finding the Fourth Proportional to 659,912.18, 910,678.81 and 358,106.18
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Solution
The fourth proportional to 659,912.18, 910,678.81 and 358,106.18 is: 494,186.53
Step by Step Solution
- Step 1: Write the proportion equation
659,912.18 : 910,678.81 = 358,106.18 : x - Step 2: Convert to fraction form
659,912.18/910,678.81 = 358,106.18/x - Step 3: Cross multiply
659,912.18x = 910,678.81 × 358,106.18 - Step 4: Simplify right side
659,912.18x = 326,119,711,237.48 - Step 5: Solve for x
x = 326,119,711,237.48/659,912.18 - Step 6: Final answer
x = 494,186.53
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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.