Finding the Fourth Proportional to 498,506.40, 687,912.96 and 283,642.08
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Solution
The fourth proportional to 498,506.40, 687,912.96 and 283,642.08 is: 391,411.35
Step by Step Solution
- Step 1: Write the proportion equation
498,506.40 : 687,912.96 = 283,642.08 : x - Step 2: Convert to fraction form
498,506.40/687,912.96 = 283,642.08/x - Step 3: Cross multiply
498,506.40x = 687,912.96 × 283,642.08 - Step 4: Simplify right side
498,506.40x = 195,121,062,833.36 - Step 5: Solve for x
x = 195,121,062,833.36/498,506.40 - Step 6: Final answer
x = 391,411.35
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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.