Finding the Fourth Proportional to 1,229,547.21, 1,696,771.86 and 685,683.62
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Solution
The fourth proportional to 1,229,547.21, 1,696,771.86 and 685,683.62 is: 946,241.55
Step by Step Solution
- Step 1: Write the proportion equation
1,229,547.21 : 1,696,771.86 = 685,683.62 : x - Step 2: Convert to fraction form
1,229,547.21/1,696,771.86 = 685,683.62/x - Step 3: Cross multiply
1,229,547.21x = 1,696,771.86 × 685,683.62 - Step 4: Simplify right side
1,229,547.21x = 1,163,448,660,223.76 - Step 5: Solve for x
x = 1,163,448,660,223.76/1,229,547.21 - Step 6: Final answer
x = 946,241.55
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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.