Finding the Fourth Proportional to 2,118,810.63, 2,923,944.15 and 1,151,940.90
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Solution
The fourth proportional to 2,118,810.63, 2,923,944.15 and 1,151,940.90 is: 1,589,670.55
Step by Step Solution
- Step 1: Write the proportion equation
2,118,810.63 : 2,923,944.15 = 1,151,940.90 : x - Step 2: Convert to fraction form
2,118,810.63/2,923,944.15 = 1,151,940.90/x - Step 3: Cross multiply
2,118,810.63x = 2,923,944.15 × 1,151,940.90 - Step 4: Simplify right side
2,118,810.63x = 3,368,210,855,700.74 - Step 5: Solve for x
x = 3,368,210,855,700.74/2,118,810.63 - Step 6: Final answer
x = 1,589,670.55
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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.