Finding the Fourth Proportional to 396,307.20, 546,891.84 and 283,319.04
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Solution
The fourth proportional to 396,307.20, 546,891.84 and 283,319.04 is: 390,971.63
Step by Step Solution
- Step 1: Write the proportion equation
396,307.20 : 546,891.84 = 283,319.04 : x - Step 2: Convert to fraction form
396,307.20/546,891.84 = 283,319.04/x - Step 3: Cross multiply
396,307.20x = 546,891.84 × 283,319.04 - Step 4: Simplify right side
396,307.20x = 154,944,871,092.63 - Step 5: Solve for x
x = 154,944,871,092.63/396,307.20 - Step 6: Final answer
x = 390,971.63
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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.