Finding the Fourth Proportional to 2,013,408.13, 2,778,503.67 and 1,107,990.13
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Solution
The fourth proportional to 2,013,408.13, 2,778,503.67 and 1,107,990.13 is: 1,529,026.63
Step by Step Solution
- Step 1: Write the proportion equation
2,013,408.13 : 2,778,503.67 = 1,107,990.13 : x - Step 2: Convert to fraction form
2,013,408.13/2,778,503.67 = 1,107,990.13/x - Step 3: Cross multiply
2,013,408.13x = 2,778,503.67 × 1,107,990.13 - Step 4: Simplify right side
2,013,408.13x = 3,078,554,642,528.78 - Step 5: Solve for x
x = 3,078,554,642,528.78/2,013,408.13 - Step 6: Final answer
x = 1,529,026.63
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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.