Finding the Fourth Proportional to 887,618, 1,224,912.84 and 485,212.88
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Solution
The fourth proportional to 887,618, 1,224,912.84 and 485,212.88 is: 669,593.77
Step by Step Solution
- Step 1: Write the proportion equation
887,618 : 1,224,912.84 = 485,212.88 : x - Step 2: Convert to fraction form
887,618/1,224,912.84 = 485,212.88/x - Step 3: Cross multiply
887,618x = 1,224,912.84 × 485,212.88 - Step 4: Simplify right side
887,618x = 594,343,486,845.38 - Step 5: Solve for x
x = 594,343,486,845.38/887,618 - Step 6: Final answer
x = 669,593.77
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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.