Finding the Fourth Proportional to 793,438.81, 1,189,905.45 and 260,837.08
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Solution
The fourth proportional to 793,438.81, 1,189,905.45 and 260,837.08 is: 391,172.52
Step by Step Solution
- Step 1: Write the proportion equation
793,438.81 : 1,189,905.45 = 260,837.08 : x - Step 2: Convert to fraction form
793,438.81/1,189,905.45 = 260,837.08/x - Step 3: Cross multiply
793,438.81x = 1,189,905.45 × 260,837.08 - Step 4: Simplify right side
793,438.81x = 310,371,459,101.18 - Step 5: Solve for x
x = 310,371,459,101.18/793,438.81 - Step 6: Final answer
x = 391,172.52
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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.