Finding the Fourth Proportional to 1,979,720.29, 2,732,013.99 and 1,074,302.29
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Solution
The fourth proportional to 1,979,720.29, 2,732,013.99 and 1,074,302.29 is: 1,482,537.15
Step by Step Solution
- Step 1: Write the proportion equation
1,979,720.29 : 2,732,013.99 = 1,074,302.29 : x - Step 2: Convert to fraction form
1,979,720.29/2,732,013.99 = 1,074,302.29/x - Step 3: Cross multiply
1,979,720.29x = 2,732,013.99 × 1,074,302.29 - Step 4: Simplify right side
1,979,720.29x = 2,935,008,878,939.00 - Step 5: Solve for x
x = 2,935,008,878,939.00/1,979,720.29 - Step 6: Final answer
x = 1,482,537.15
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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.