Finding the Fourth Proportional to 818,176.14, 1,128,116.97 and 560,178.18
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Solution
The fourth proportional to 818,176.14, 1,128,116.97 and 560,178.18 is: 772,384.43
Step by Step Solution
- Step 1: Write the proportion equation
818,176.14 : 1,128,116.97 = 560,178.18 : x - Step 2: Convert to fraction form
818,176.14/1,128,116.97 = 560,178.18/x - Step 3: Cross multiply
818,176.14x = 1,128,116.97 × 560,178.18 - Step 4: Simplify right side
818,176.14x = 631,946,511,081.72 - Step 5: Solve for x
x = 631,946,511,081.72/818,176.14 - Step 6: Final answer
x = 772,384.43
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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.