Finding the Fourth Proportional to 971.61, 1,455.99 and 483.99
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Solution
The fourth proportional to 971.61, 1,455.99 and 483.99 is: 725.28
Step by Step Solution
- Step 1: Write the proportion equation
971.61 : 1,455.99 = 483.99 : x - Step 2: Convert to fraction form
971.61/1,455.99 = 483.99/x - Step 3: Cross multiply
971.61x = 1,455.99 × 483.99 - Step 4: Simplify right side
971.61x = 704,684.60 - Step 5: Solve for x
x = 704,684.60/971.61 - Step 6: Final answer
x = 725.28
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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.