Finding the Fourth Proportional to 1,961,252.68, 2,706,747.85 and 1,187,309.95
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Solution
The fourth proportional to 1,961,252.68, 2,706,747.85 and 1,187,309.95 is: 1,638,620.40
Step by Step Solution
- Step 1: Write the proportion equation
1,961,252.68 : 2,706,747.85 = 1,187,309.95 : x - Step 2: Convert to fraction form
1,961,252.68/2,706,747.85 = 1,187,309.95/x - Step 3: Cross multiply
1,961,252.68x = 2,706,747.85 × 1,187,309.95 - Step 4: Simplify right side
1,961,252.68x = 3,213,748,654,446.11 - Step 5: Solve for x
x = 3,213,748,654,446.11/1,961,252.68 - Step 6: Final answer
x = 1,638,620.40
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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.