Finding the Fourth Proportional to 877,755.12, 1,316,497.86 and 278,638.44
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Solution
The fourth proportional to 877,755.12, 1,316,497.86 and 278,638.44 is: 417,914.86
Step by Step Solution
- Step 1: Write the proportion equation
877,755.12 : 1,316,497.86 = 278,638.44 : x - Step 2: Convert to fraction form
877,755.12/1,316,497.86 = 278,638.44/x - Step 3: Cross multiply
877,755.12x = 1,316,497.86 × 278,638.44 - Step 4: Simplify right side
877,755.12x = 366,826,909,973.74 - Step 5: Solve for x
x = 366,826,909,973.74/877,755.12 - Step 6: Final answer
x = 417,914.86
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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.