Finding the Fourth Proportional to 715,311.04, 986,885.09 and 443,279.68
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Solution
The fourth proportional to 715,311.04, 986,885.09 and 443,279.68 is: 611,574.66
Step by Step Solution
- Step 1: Write the proportion equation
715,311.04 : 986,885.09 = 443,279.68 : x - Step 2: Convert to fraction form
715,311.04/986,885.09 = 443,279.68/x - Step 3: Cross multiply
715,311.04x = 986,885.09 × 443,279.68 - Step 4: Simplify right side
715,311.04x = 437,466,106,891.97 - Step 5: Solve for x
x = 437,466,106,891.97/715,311.04 - Step 6: Final answer
x = 611,574.66
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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.