Finding the Fourth Proportional to 831,602.62, 1,147,394.75 and 487,253.53
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Solution
The fourth proportional to 831,602.62, 1,147,394.75 and 487,253.53 is: 672,282.80
Step by Step Solution
- Step 1: Write the proportion equation
831,602.62 : 1,147,394.75 = 487,253.53 : x - Step 2: Convert to fraction form
831,602.62/1,147,394.75 = 487,253.53/x - Step 3: Cross multiply
831,602.62x = 1,147,394.75 × 487,253.53 - Step 4: Simplify right side
831,602.62x = 559,072,141,238.94 - Step 5: Solve for x
x = 559,072,141,238.94/831,602.62 - Step 6: Final answer
x = 672,282.80
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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.