Finding the Fourth Proportional to 1,989,368.33, 2,984,634.68 and 641,503.62
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Solution
The fourth proportional to 1,989,368.33, 2,984,634.68 and 641,503.62 is: 962,443.17
Step by Step Solution
- Step 1: Write the proportion equation
1,989,368.33 : 2,984,634.68 = 641,503.62 : x - Step 2: Convert to fraction form
1,989,368.33/2,984,634.68 = 641,503.62/x - Step 3: Cross multiply
1,989,368.33x = 2,984,634.68 × 641,503.62 - Step 4: Simplify right side
1,989,368.33x = 1,914,653,948,390.02 - Step 5: Solve for x
x = 1,914,653,948,390.02/1,989,368.33 - Step 6: Final answer
x = 962,443.17
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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.