Finding the Fourth Proportional to 3,116,921.10, 4,675,381.40 and 1,579,677.08
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Solution
The fourth proportional to 3,116,921.10, 4,675,381.40 and 1,579,677.08 is: 2,369,515.50
Step by Step Solution
- Step 1: Write the proportion equation
3,116,921.10 : 4,675,381.40 = 1,579,677.08 : x - Step 2: Convert to fraction form
3,116,921.10/4,675,381.40 = 1,579,677.08/x - Step 3: Cross multiply
3,116,921.10x = 4,675,381.40 × 1,579,677.08 - Step 4: Simplify right side
3,116,921.10x = 7,385,592,845,309.78 - Step 5: Solve for x
x = 7,385,592,845,309.78/3,116,921.10 - Step 6: Final answer
x = 2,369,515.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.