Finding the Fourth Proportional to 478,513.09, 717,880.70 and 162,972.73
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Solution
The fourth proportional to 478,513.09, 717,880.70 and 162,972.73 is: 244,496.92
Step by Step Solution
- Step 1: Write the proportion equation
478,513.09 : 717,880.70 = 162,972.73 : x - Step 2: Convert to fraction form
478,513.09/717,880.70 = 162,972.73/x - Step 3: Cross multiply
478,513.09x = 717,880.70 × 162,972.73 - Step 4: Simplify right side
478,513.09x = 116,994,977,493.31 - Step 5: Solve for x
x = 116,994,977,493.31/478,513.09 - Step 6: Final answer
x = 244,496.92
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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.