Finding the Fourth Proportional to 1,125,555.22, 1,688,379.53 and 326,836.76
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Solution
The fourth proportional to 1,125,555.22, 1,688,379.53 and 326,836.76 is: 490,268.70
Step by Step Solution
- Step 1: Write the proportion equation
1,125,555.22 : 1,688,379.53 = 326,836.76 : x - Step 2: Convert to fraction form
1,125,555.22/1,688,379.53 = 326,836.76/x - Step 3: Cross multiply
1,125,555.22x = 1,688,379.53 × 326,836.76 - Step 4: Simplify right side
1,125,555.22x = 551,824,487,917.13 - Step 5: Solve for x
x = 551,824,487,917.13/1,125,555.22 - Step 6: Final answer
x = 490,268.70
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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.