Finding the Fourth Proportional to 2,992,728.81, 4,129,978.36 and 1,685,996.53
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Solution
The fourth proportional to 2,992,728.81, 4,129,978.36 and 1,685,996.53 is: 2,326,682.31
Step by Step Solution
- Step 1: Write the proportion equation
2,992,728.81 : 4,129,978.36 = 1,685,996.53 : x - Step 2: Convert to fraction form
2,992,728.81/4,129,978.36 = 1,685,996.53/x - Step 3: Cross multiply
2,992,728.81x = 4,129,978.36 × 1,685,996.53 - Step 4: Simplify right side
2,992,728.81x = 6,963,129,183,935.09 - Step 5: Solve for x
x = 6,963,129,183,935.09/2,992,728.81 - Step 6: Final answer
x = 2,326,682.31
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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.