Finding the Fourth Proportional to 974.70, 1,462.79 and 358.99
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Solution
The fourth proportional to 974.70, 1,462.79 and 358.99 is: 538.75
Step by Step Solution
- Step 1: Write the proportion equation
974.70 : 1,462.79 = 358.99 : x - Step 2: Convert to fraction form
974.70/1,462.79 = 358.99/x - Step 3: Cross multiply
974.70x = 1,462.79 × 358.99 - Step 4: Simplify right side
974.70x = 525,124.22 - Step 5: Solve for x
x = 525,124.22/974.70 - Step 6: Final answer
x = 538.75
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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.