Finding the Fourth Proportional to 762,989.68, 1,052,930.12 and 476,676.08
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Solution
The fourth proportional to 762,989.68, 1,052,930.12 and 476,676.08 is: 657,815.72
Step by Step Solution
- Step 1: Write the proportion equation
762,989.68 : 1,052,930.12 = 476,676.08 : x - Step 2: Convert to fraction form
762,989.68/1,052,930.12 = 476,676.08/x - Step 3: Cross multiply
762,989.68x = 1,052,930.12 × 476,676.08 - Step 4: Simplify right side
762,989.68x = 501,906,602,115.53 - Step 5: Solve for x
x = 501,906,602,115.53/762,989.68 - Step 6: Final answer
x = 657,815.72
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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.