Finding the Fourth Proportional to 498,736.70, 688,261.05 and 283,890.60
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Solution
The fourth proportional to 498,736.70, 688,261.05 and 283,890.60 is: 391,771.53
Step by Step Solution
- Step 1: Write the proportion equation
498,736.70 : 688,261.05 = 283,890.60 : x - Step 2: Convert to fraction form
498,736.70/688,261.05 = 283,890.60/x - Step 3: Cross multiply
498,736.70x = 688,261.05 × 283,890.60 - Step 4: Simplify right side
498,736.70x = 195,390,842,441.13 - Step 5: Solve for x
x = 195,390,842,441.13/498,736.70 - Step 6: Final answer
x = 391,771.53
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.