Finding the Fourth Proportional to 953.19, 1,430.57 and 405.99
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Solution
The fourth proportional to 953.19, 1,430.57 and 405.99 is: 609.32
Step by Step Solution
- Step 1: Write the proportion equation
953.19 : 1,430.57 = 405.99 : x - Step 2: Convert to fraction form
953.19/1,430.57 = 405.99/x - Step 3: Cross multiply
953.19x = 1,430.57 × 405.99 - Step 4: Simplify right side
953.19x = 580,795.08 - Step 5: Solve for x
x = 580,795.08/953.19 - Step 6: Final answer
x = 609.32
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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.