Finding the Fourth Proportional to 887.70, 1,224.68 and 556
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Solution
The fourth proportional to 887.70, 1,224.68 and 556 is: 767.06
Step by Step Solution
- Step 1: Write the proportion equation
887.70 : 1,224.68 = 556 : x - Step 2: Convert to fraction form
887.70/1,224.68 = 556/x - Step 3: Cross multiply
887.70x = 1,224.68 × 556 - Step 4: Simplify right side
887.70x = 680,922.08 - Step 5: Solve for x
x = 680,922.08/887.70 - Step 6: Final answer
x = 767.06
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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.