Finding the Fourth Proportional to 1,312,837.44, 1,969,081.20 and 366,128.88
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Solution
The fourth proportional to 1,312,837.44, 1,969,081.20 and 366,128.88 is: 549,144.53
Step by Step Solution
- Step 1: Write the proportion equation
1,312,837.44 : 1,969,081.20 = 366,128.88 : x - Step 2: Convert to fraction form
1,312,837.44/1,969,081.20 = 366,128.88/x - Step 3: Cross multiply
1,312,837.44x = 1,969,081.20 × 366,128.88 - Step 4: Simplify right side
1,312,837.44x = 720,937,494,385.06 - Step 5: Solve for x
x = 720,937,494,385.06/1,312,837.44 - Step 6: Final answer
x = 549,144.53
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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.