Finding the Fourth Proportional to 649.10, 972.99 and 417.32
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Solution
The fourth proportional to 649.10, 972.99 and 417.32 is: 625.56
Step by Step Solution
- Step 1: Write the proportion equation
649.10 : 972.99 = 417.32 : x - Step 2: Convert to fraction form
649.10/972.99 = 417.32/x - Step 3: Cross multiply
649.10x = 972.99 × 417.32 - Step 4: Simplify right side
649.10x = 406,048.19 - Step 5: Solve for x
x = 406,048.19/649.10 - Step 6: Final answer
x = 625.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.