Finding the Fourth Proportional to 4,888,644.70, 6,722,400.80 and 4,242,940.42
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Solution
The fourth proportional to 4,888,644.70, 6,722,400.80 and 4,242,940.42 is: 5,834,489.48
Step by Step Solution
- Step 1: Write the proportion equation
4,888,644.70 : 6,722,400.80 = 4,242,940.42 : x - Step 2: Convert to fraction form
4,888,644.70/6,722,400.80 = 4,242,940.42/x - Step 3: Cross multiply
4,888,644.70x = 6,722,400.80 × 4,242,940.42 - Step 4: Simplify right side
4,888,644.70x = 28,522,746,073,760.34 - Step 5: Solve for x
x = 28,522,746,073,760.34/4,888,644.70 - Step 6: Final answer
x = 5,834,489.48
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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.