Finding the Fourth Proportional to 2,128,530.63, 2,938,455.86 and 1,644,008.07
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Solution
The fourth proportional to 2,128,530.63, 2,938,455.86 and 1,644,008.07 is: 2,269,568.06
Step by Step Solution
- Step 1: Write the proportion equation
2,128,530.63 : 2,938,455.86 = 1,644,008.07 : x - Step 2: Convert to fraction form
2,128,530.63/2,938,455.86 = 1,644,008.07/x - Step 3: Cross multiply
2,128,530.63x = 2,938,455.86 × 1,644,008.07 - Step 4: Simplify right side
2,128,530.63x = 4,830,845,138,958.75 - Step 5: Solve for x
x = 4,830,845,138,958.75/2,128,530.63 - Step 6: Final answer
x = 2,269,568.06
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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.