Finding the Fourth Proportional to 1,912,602.35, 2,638,026.55 and 1,232,882.75
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Solution
The fourth proportional to 1,912,602.35, 2,638,026.55 and 1,232,882.75 is: 1,700,498.50
Step by Step Solution
- Step 1: Write the proportion equation
1,912,602.35 : 2,638,026.55 = 1,232,882.75 : x - Step 2: Convert to fraction form
1,912,602.35/2,638,026.55 = 1,232,882.75/x - Step 3: Cross multiply
1,912,602.35x = 2,638,026.55 × 1,232,882.75 - Step 4: Simplify right side
1,912,602.35x = 3,252,377,427,537.01 - Step 5: Solve for x
x = 3,252,377,427,537.01/1,912,602.35 - Step 6: Final answer
x = 1,700,498.50
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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.