Finding the Fourth Proportional to 1,945,890.08, 2,685,302.88 and 1,086,464.96
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Solution
The fourth proportional to 1,945,890.08, 2,685,302.88 and 1,086,464.96 is: 1,499,307.45
Step by Step Solution
- Step 1: Write the proportion equation
1,945,890.08 : 2,685,302.88 = 1,086,464.96 : x - Step 2: Convert to fraction form
1,945,890.08/2,685,302.88 = 1,086,464.96/x - Step 3: Cross multiply
1,945,890.08x = 2,685,302.88 × 1,086,464.96 - Step 4: Simplify right side
1,945,890.08x = 2,917,487,486,107.08 - Step 5: Solve for x
x = 2,917,487,486,107.08/1,945,890.08 - Step 6: Final answer
x = 1,499,307.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.