Finding the Fourth Proportional to 411,361.52, 615,335.84 and 386,167.28
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Solution
The fourth proportional to 411,361.52, 615,335.84 and 386,167.28 is: 577,648.99
Step by Step Solution
- Step 1: Write the proportion equation
411,361.52 : 615,335.84 = 386,167.28 : x - Step 2: Convert to fraction form
411,361.52/615,335.84 = 386,167.28/x - Step 3: Cross multiply
411,361.52x = 615,335.84 × 386,167.28 - Step 4: Simplify right side
411,361.52x = 237,622,567,619.32 - Step 5: Solve for x
x = 237,622,567,619.32/411,361.52 - Step 6: Final answer
x = 577,648.99
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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.