Finding the Fourth Proportional to 1,377,101.18, 1,900,625.11 and 1,147,294.06
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Solution
The fourth proportional to 1,377,101.18, 1,900,625.11 and 1,147,294.06 is: 1,583,453.65
Step by Step Solution
- Step 1: Write the proportion equation
1,377,101.18 : 1,900,625.11 = 1,147,294.06 : x - Step 2: Convert to fraction form
1,377,101.18/1,900,625.11 = 1,147,294.06/x - Step 3: Cross multiply
1,377,101.18x = 1,900,625.11 × 1,147,294.06 - Step 4: Simplify right side
1,377,101.18x = 2,180,575,891,370.05 - Step 5: Solve for x
x = 2,180,575,891,370.05/1,377,101.18 - Step 6: Final answer
x = 1,583,453.65
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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.