Finding the Fourth Proportional to 4,213,428.15, 5,814,489.49 and 2,279,646.30
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Solution
The fourth proportional to 4,213,428.15, 5,814,489.49 and 2,279,646.30 is: 3,145,889.52
Step by Step Solution
- Step 1: Write the proportion equation
4,213,428.15 : 5,814,489.49 = 2,279,646.30 : x - Step 2: Convert to fraction form
4,213,428.15/5,814,489.49 = 2,279,646.30/x - Step 3: Cross multiply
4,213,428.15x = 5,814,489.49 × 2,279,646.30 - Step 4: Simplify right side
4,213,428.15x = 13,254,979,452,267.39 - Step 5: Solve for x
x = 13,254,979,452,267.39/4,213,428.15 - Step 6: Final answer
x = 3,145,889.52
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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.