Finding the Fourth Proportional to 1,638,135.35, 2,260,703.76 and 912,988.26
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Solution
The fourth proportional to 1,638,135.35, 2,260,703.76 and 912,988.26 is: 1,259,966.69
Step by Step Solution
- Step 1: Write the proportion equation
1,638,135.35 : 2,260,703.76 = 912,988.26 : x - Step 2: Convert to fraction form
1,638,135.35/2,260,703.76 = 912,988.26/x - Step 3: Cross multiply
1,638,135.35x = 2,260,703.76 × 912,988.26 - Step 4: Simplify right side
1,638,135.35x = 2,063,995,976,349.40 - Step 5: Solve for x
x = 2,063,995,976,349.40/1,638,135.35 - Step 6: Final answer
x = 1,259,966.69
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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.