Finding the Fourth Proportional to 831,602.08, 1,147,905.76 and 492,069.52
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Solution
The fourth proportional to 831,602.08, 1,147,905.76 and 492,069.52 is: 679,230.43
Step by Step Solution
- Step 1: Write the proportion equation
831,602.08 : 1,147,905.76 = 492,069.52 : x - Step 2: Convert to fraction form
831,602.08/1,147,905.76 = 492,069.52/x - Step 3: Cross multiply
831,602.08x = 1,147,905.76 × 492,069.52 - Step 4: Simplify right side
831,602.08x = 564,849,436,328.44 - Step 5: Solve for x
x = 564,849,436,328.44/831,602.08 - Step 6: Final answer
x = 679,230.43
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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.