Finding the Fourth Proportional to 518,918.40, 778,299.84 and 203,592.96
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Solution
The fourth proportional to 518,918.40, 778,299.84 and 203,592.96 is: 305,358.93
Step by Step Solution
- Step 1: Write the proportion equation
518,918.40 : 778,299.84 = 203,592.96 : x - Step 2: Convert to fraction form
518,918.40/778,299.84 = 203,592.96/x - Step 3: Cross multiply
518,918.40x = 778,299.84 × 203,592.96 - Step 4: Simplify right side
518,918.40x = 158,456,368,193.13 - Step 5: Solve for x
x = 158,456,368,193.13/518,918.40 - Step 6: Final answer
x = 305,358.93
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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.