Finding the Fourth Proportional to 1,186,351.75, 1,637,156.68 and 642,474.91
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Solution
The fourth proportional to 1,186,351.75, 1,637,156.68 and 642,474.91 is: 886,610.65
Step by Step Solution
- Step 1: Write the proportion equation
1,186,351.75 : 1,637,156.68 = 642,474.91 : x - Step 2: Convert to fraction form
1,186,351.75/1,637,156.68 = 642,474.91/x - Step 3: Cross multiply
1,186,351.75x = 1,637,156.68 × 642,474.91 - Step 4: Simplify right side
1,186,351.75x = 1,051,832,090,638.90 - Step 5: Solve for x
x = 1,051,832,090,638.90/1,186,351.75 - Step 6: Final answer
x = 886,610.65
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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.