Finding the Fourth Proportional to 631,268.16, 871,135.98 and 344,789.28
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Solution
The fourth proportional to 631,268.16, 871,135.98 and 344,789.28 is: 475,801.52
Step by Step Solution
- Step 1: Write the proportion equation
631,268.16 : 871,135.98 = 344,789.28 : x - Step 2: Convert to fraction form
631,268.16/871,135.98 = 344,789.28/x - Step 3: Cross multiply
631,268.16x = 871,135.98 × 344,789.28 - Step 4: Simplify right side
631,268.16x = 300,358,347,326.29 - Step 5: Solve for x
x = 300,358,347,326.29/631,268.16 - Step 6: Final answer
x = 475,801.52
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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.