Finding the Fourth Proportional to 690, 952.68 and 483.28
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Solution
The fourth proportional to 690, 952.68 and 483.28 is: 667.26
Step by Step Solution
- Step 1: Write the proportion equation
690 : 952.68 = 483.28 : x - Step 2: Convert to fraction form
690/952.68 = 483.28/x - Step 3: Cross multiply
690x = 952.68 × 483.28 - Step 4: Simplify right side
690x = 460,411.19 - Step 5: Solve for x
x = 460,411.19/690 - Step 6: Final answer
x = 667.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.