Finding the Fourth Proportional to 4,090,991.28, 6,135,502.64 and 1,251,128.08
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Solution
The fourth proportional to 4,090,991.28, 6,135,502.64 and 1,251,128.08 is: 1,876,391.10
Step by Step Solution
- Step 1: Write the proportion equation
4,090,991.28 : 6,135,502.64 = 1,251,128.08 : x - Step 2: Convert to fraction form
4,090,991.28/6,135,502.64 = 1,251,128.08/x - Step 3: Cross multiply
4,090,991.28x = 6,135,502.64 × 1,251,128.08 - Step 4: Simplify right side
4,090,991.28x = 7,676,299,637,818.13 - Step 5: Solve for x
x = 7,676,299,637,818.13/4,090,991.28 - Step 6: Final answer
x = 1,876,391.10
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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.