Finding the Fourth Proportional to 661,782.36, 992,579.82 and 212,444.07
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Solution
The fourth proportional to 661,782.36, 992,579.82 and 212,444.07 is: 318,636.02
Step by Step Solution
- Step 1: Write the proportion equation
661,782.36 : 992,579.82 = 212,444.07 : x - Step 2: Convert to fraction form
661,782.36/992,579.82 = 212,444.07/x - Step 3: Cross multiply
661,782.36x = 992,579.82 × 212,444.07 - Step 4: Simplify right side
661,782.36x = 210,867,696,760.67 - Step 5: Solve for x
x = 210,867,696,760.67/661,782.36 - Step 6: Final answer
x = 318,636.02
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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.