Finding the Fourth Proportional to 412,201.17, 618,389.91 and 127,885.53
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Solution
The fourth proportional to 412,201.17, 618,389.91 and 127,885.53 is: 191,855.65
Step by Step Solution
- Step 1: Write the proportion equation
412,201.17 : 618,389.91 = 127,885.53 : x - Step 2: Convert to fraction form
412,201.17/618,389.91 = 127,885.53/x - Step 3: Cross multiply
412,201.17x = 618,389.91 × 127,885.53 - Step 4: Simplify right side
412,201.17x = 79,083,123,705.96 - Step 5: Solve for x
x = 79,083,123,705.96/412,201.17 - Step 6: Final answer
x = 191,855.65
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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.