Finding the Fourth Proportional to 1,087,938.84, 1,631,907.96 and 339,984.84
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Solution
The fourth proportional to 1,087,938.84, 1,631,907.96 and 339,984.84 is: 509,977.17
Step by Step Solution
- Step 1: Write the proportion equation
1,087,938.84 : 1,631,907.96 = 339,984.84 : x - Step 2: Convert to fraction form
1,087,938.84/1,631,907.96 = 339,984.84/x - Step 3: Cross multiply
1,087,938.84x = 1,631,907.96 × 339,984.84 - Step 4: Simplify right side
1,087,938.84x = 554,823,966,675.33 - Step 5: Solve for x
x = 554,823,966,675.33/1,087,938.84 - Step 6: Final answer
x = 509,977.17
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.