Finding the Fourth Proportional to 1,186,362.24, 1,637,171.62 and 642,485.58
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Solution
The fourth proportional to 1,186,362.24, 1,637,171.62 and 642,485.58 is: 886,625.62
Step by Step Solution
- Step 1: Write the proportion equation
1,186,362.24 : 1,637,171.62 = 642,485.58 : x - Step 2: Convert to fraction form
1,186,362.24/1,637,171.62 = 642,485.58/x - Step 3: Cross multiply
1,186,362.24x = 1,637,171.62 × 642,485.58 - Step 4: Simplify right side
1,186,362.24x = 1,051,859,157,835.24 - Step 5: Solve for x
x = 1,051,859,157,835.24/1,186,362.24 - Step 6: Final answer
x = 886,625.62
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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.