Finding the Fourth Proportional to 3,999,557.30, 5,519,365.45 and 2,280,640.91
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Solution
The fourth proportional to 3,999,557.30, 5,519,365.45 and 2,280,640.91 is: 3,147,270.98
Step by Step Solution
- Step 1: Write the proportion equation
3,999,557.30 : 5,519,365.45 = 2,280,640.91 : x - Step 2: Convert to fraction form
3,999,557.30/5,519,365.45 = 2,280,640.91/x - Step 3: Cross multiply
3,999,557.30x = 5,519,365.45 × 2,280,640.91 - Step 4: Simplify right side
3,999,557.30x = 12,587,690,609,212.13 - Step 5: Solve for x
x = 12,587,690,609,212.13/3,999,557.30 - Step 6: Final answer
x = 3,147,270.98
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1.5x scale
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.