Finding the Fourth Proportional to 889.79, 1,335.36 and 403.19
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Solution
The fourth proportional to 889.79, 1,335.36 and 403.19 is: 605.08
Step by Step Solution
- Step 1: Write the proportion equation
889.79 : 1,335.36 = 403.19 : x - Step 2: Convert to fraction form
889.79/1,335.36 = 403.19/x - Step 3: Cross multiply
889.79x = 1,335.36 × 403.19 - Step 4: Simplify right side
889.79x = 538,397.12 - Step 5: Solve for x
x = 538,397.12/889.79 - Step 6: Final answer
x = 605.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.