Finding the Fourth Proportional to 757,613.76, 1,045,503.36 and 418,102.80
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Solution
The fourth proportional to 757,613.76, 1,045,503.36 and 418,102.80 is: 576,979.86
Step by Step Solution
- Step 1: Write the proportion equation
757,613.76 : 1,045,503.36 = 418,102.80 : x - Step 2: Convert to fraction form
757,613.76/1,045,503.36 = 418,102.80/x - Step 3: Cross multiply
757,613.76x = 1,045,503.36 × 418,102.80 - Step 4: Simplify right side
757,613.76x = 437,127,882,225.41 - Step 5: Solve for x
x = 437,127,882,225.41/757,613.76 - Step 6: Final answer
x = 576,979.86
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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.