Finding the Fourth Proportional to 1,685,415.12, 2,528,374.78 and 620,376.08
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Solution
The fourth proportional to 1,685,415.12, 2,528,374.78 and 620,376.08 is: 930,656.91
Step by Step Solution
- Step 1: Write the proportion equation
1,685,415.12 : 2,528,374.78 = 620,376.08 : x - Step 2: Convert to fraction form
1,685,415.12/2,528,374.78 = 620,376.08/x - Step 3: Cross multiply
1,685,415.12x = 2,528,374.78 × 620,376.08 - Step 4: Simplify right side
1,685,415.12x = 1,568,543,234,787.26 - Step 5: Solve for x
x = 1,568,543,234,787.26/1,685,415.12 - Step 6: Final answer
x = 930,656.91
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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.