Finding the Fourth Proportional to 1,186,701.99, 1,637,656.63 and 642,837.82
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Solution
The fourth proportional to 1,186,701.99, 1,637,656.63 and 642,837.82 is: 887,120.46
Step by Step Solution
- Step 1: Write the proportion equation
1,186,701.99 : 1,637,656.63 = 642,837.82 : x - Step 2: Convert to fraction form
1,186,701.99/1,637,656.63 = 642,837.82/x - Step 3: Cross multiply
1,186,701.99x = 1,637,656.63 × 642,837.82 - Step 4: Simplify right side
1,186,701.99x = 1,052,747,618,923.08 - Step 5: Solve for x
x = 1,052,747,618,923.08/1,186,701.99 - Step 6: Final answer
x = 887,120.46
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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.