Finding the Fourth Proportional to 1,190,684.95, 1,643,083.08 and 646,819.05
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Solution
The fourth proportional to 1,190,684.95, 1,643,083.08 and 646,819.05 is: 892,576.53
Step by Step Solution
- Step 1: Write the proportion equation
1,190,684.95 : 1,643,083.08 = 646,819.05 : x - Step 2: Convert to fraction form
1,190,684.95/1,643,083.08 = 646,819.05/x - Step 3: Cross multiply
1,190,684.95x = 1,643,083.08 × 646,819.05 - Step 4: Simplify right side
1,190,684.95x = 1,062,777,440,612.66 - Step 5: Solve for x
x = 1,062,777,440,612.66/1,190,684.95 - Step 6: Final answer
x = 892,576.53
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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.