Finding the Fourth Proportional to 1,605,180.92, 2,215,167.68 and 916,943.90
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Solution
The fourth proportional to 1,605,180.92, 2,215,167.68 and 916,943.90 is: 1,265,392.87
Step by Step Solution
- Step 1: Write the proportion equation
1,605,180.92 : 2,215,167.68 = 916,943.90 : x - Step 2: Convert to fraction form
1,605,180.92/2,215,167.68 = 916,943.90/x - Step 3: Cross multiply
1,605,180.92x = 2,215,167.68 × 916,943.90 - Step 4: Simplify right side
1,605,180.92x = 2,031,184,482,869.67 - Step 5: Solve for x
x = 2,031,184,482,869.67/1,605,180.92 - Step 6: Final answer
x = 1,265,392.87
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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.