Finding the Fourth Proportional to 3,426,782.14, 4,728,946.62 and 1,898,888.05
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Solution
The fourth proportional to 3,426,782.14, 4,728,946.62 and 1,898,888.05 is: 2,620,458.45
Step by Step Solution
- Step 1: Write the proportion equation
3,426,782.14 : 4,728,946.62 = 1,898,888.05 : x - Step 2: Convert to fraction form
3,426,782.14/4,728,946.62 = 1,898,888.05/x - Step 3: Cross multiply
3,426,782.14x = 4,728,946.62 × 1,898,888.05 - Step 4: Simplify right side
3,426,782.14x = 8,979,740,225,805.89 - Step 5: Solve for x
x = 8,979,740,225,805.89/3,426,782.14 - Step 6: Final answer
x = 2,620,458.45
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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.