Finding the Fourth Proportional to 1,976,585.44, 2,728,176.24 and 1,298,440.48
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Solution
The fourth proportional to 1,976,585.44, 2,728,176.24 and 1,298,440.48 is: 1,792,168.65
Step by Step Solution
- Step 1: Write the proportion equation
1,976,585.44 : 2,728,176.24 = 1,298,440.48 : x - Step 2: Convert to fraction form
1,976,585.44/2,728,176.24 = 1,298,440.48/x - Step 3: Cross multiply
1,976,585.44x = 2,728,176.24 × 1,298,440.48 - Step 4: Simplify right side
1,976,585.44x = 3,542,374,466,590.20 - Step 5: Solve for x
x = 3,542,374,466,590.20/1,976,585.44 - Step 6: Final answer
x = 1,792,168.65
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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.