Finding the Fourth Proportional to 719.24, 992.62 and 424.44
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Solution
The fourth proportional to 719.24, 992.62 and 424.44 is: 585.77
Step by Step Solution
- Step 1: Write the proportion equation
719.24 : 992.62 = 424.44 : x - Step 2: Convert to fraction form
719.24/992.62 = 424.44/x - Step 3: Cross multiply
719.24x = 992.62 × 424.44 - Step 4: Simplify right side
719.24x = 421,307.63 - Step 5: Solve for x
x = 421,307.63/719.24 - Step 6: Final answer
x = 585.77
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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.