Finding the Fourth Proportional to 1,167,889.49, 1,611,412.43 and 708,992.49
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Solution
The fourth proportional to 1,167,889.49, 1,611,412.43 and 708,992.49 is: 978,242.66
Step by Step Solution
- Step 1: Write the proportion equation
1,167,889.49 : 1,611,412.43 = 708,992.49 : x - Step 2: Convert to fraction form
1,167,889.49/1,611,412.43 = 708,992.49/x - Step 3: Cross multiply
1,167,889.49x = 1,611,412.43 × 708,992.49 - Step 4: Simplify right side
1,167,889.49x = 1,142,479,317,648.57 - Step 5: Solve for x
x = 1,142,479,317,648.57/1,167,889.49 - Step 6: Final answer
x = 978,242.66
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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.