Finding the Fourth Proportional to 1,186,342.58, 1,637,132.52 and 642,473.95
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Solution
The fourth proportional to 1,186,342.58, 1,637,132.52 and 642,473.95 is: 886,603.09
Step by Step Solution
- Step 1: Write the proportion equation
1,186,342.58 : 1,637,132.52 = 642,473.95 : x - Step 2: Convert to fraction form
1,186,342.58/1,637,132.52 = 642,473.95/x - Step 3: Cross multiply
1,186,342.58x = 1,637,132.52 × 642,473.95 - Step 4: Simplify right side
1,186,342.58x = 1,051,814,995,114.30 - Step 5: Solve for x
x = 1,051,814,995,114.30/1,186,342.58 - Step 6: Final answer
x = 886,603.09
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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.