Finding the Fourth Proportional to 615,163.82, 849,345.84 and 397,899.14
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Solution
The fourth proportional to 615,163.82, 849,345.84 and 397,899.14 is: 549,372.32
Step by Step Solution
- Step 1: Write the proportion equation
615,163.82 : 849,345.84 = 397,899.14 : x - Step 2: Convert to fraction form
615,163.82/849,345.84 = 397,899.14/x - Step 3: Cross multiply
615,163.82x = 849,345.84 × 397,899.14 - Step 4: Simplify right side
615,163.82x = 337,953,975,051.85 - Step 5: Solve for x
x = 337,953,975,051.85/615,163.82 - Step 6: Final answer
x = 549,372.32
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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.