Finding the Fourth Proportional to 594.60, 820.90 and 405.87
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Solution
The fourth proportional to 594.60, 820.90 and 405.87 is: 560.34
Step by Step Solution
- Step 1: Write the proportion equation
594.60 : 820.90 = 405.87 : x - Step 2: Convert to fraction form
594.60/820.90 = 405.87/x - Step 3: Cross multiply
594.60x = 820.90 × 405.87 - Step 4: Simplify right side
594.60x = 333,178.68 - Step 5: Solve for x
x = 333,178.68/594.60 - Step 6: Final answer
x = 560.34
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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.