Finding the Fourth Proportional to 439.84, 602.95 and 431.99
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Solution
The fourth proportional to 439.84, 602.95 and 431.99 is: 592.19
Step by Step Solution
- Step 1: Write the proportion equation
439.84 : 602.95 = 431.99 : x - Step 2: Convert to fraction form
439.84/602.95 = 431.99/x - Step 3: Cross multiply
439.84x = 602.95 × 431.99 - Step 4: Simplify right side
439.84x = 260,468.37 - Step 5: Solve for x
x = 260,468.37/439.84 - Step 6: Final answer
x = 592.19
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.