Finding the Fourth Proportional to 1,186,310.95, 1,637,106.62 and 642,445.07
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Solution
The fourth proportional to 1,186,310.95, 1,637,106.62 and 642,445.07 is: 886,572.84
Step by Step Solution
- Step 1: Write the proportion equation
1,186,310.95 : 1,637,106.62 = 642,445.07 : x - Step 2: Convert to fraction form
1,186,310.95/1,637,106.62 = 642,445.07/x - Step 3: Cross multiply
1,186,310.95x = 1,637,106.62 × 642,445.07 - Step 4: Simplify right side
1,186,310.95x = 1,051,751,065,685.60 - Step 5: Solve for x
x = 1,051,751,065,685.60/1,186,310.95 - Step 6: Final answer
x = 886,572.84
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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.