Finding the Fourth Proportional to 877,478, 1,316,217.18 and 316,512.44
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Solution
The fourth proportional to 877,478, 1,316,217.18 and 316,512.44 is: 474,768.72
Step by Step Solution
- Step 1: Write the proportion equation
877,478 : 1,316,217.18 = 316,512.44 : x - Step 2: Convert to fraction form
877,478/1,316,217.18 = 316,512.44/x - Step 3: Cross multiply
877,478x = 1,316,217.18 × 316,512.44 - Step 4: Simplify right side
877,478x = 416,599,111,211.72 - Step 5: Solve for x
x = 416,599,111,211.72/877,478 - Step 6: Final answer
x = 474,768.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.