Finding the Fourth Proportional to 498,064.60, 687,388.08 and 283,236.94
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Solution
The fourth proportional to 498,064.60, 687,388.08 and 283,236.94 is: 390,900.49
Step by Step Solution
- Step 1: Write the proportion equation
498,064.60 : 687,388.08 = 283,236.94 : x - Step 2: Convert to fraction form
498,064.60/687,388.08 = 283,236.94/x - Step 3: Cross multiply
498,064.60x = 687,388.08 × 283,236.94 - Step 4: Simplify right side
498,064.60x = 194,693,696,371.68 - Step 5: Solve for x
x = 194,693,696,371.68/498,064.60 - Step 6: Final answer
x = 390,900.49
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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.