Finding the Fourth Proportional to 990,140.96, 1,366,160.36 and 560,421.11
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Solution
The fourth proportional to 990,140.96, 1,366,160.36 and 560,421.11 is: 773,248.59
Step by Step Solution
- Step 1: Write the proportion equation
990,140.96 : 1,366,160.36 = 560,421.11 : x - Step 2: Convert to fraction form
990,140.96/1,366,160.36 = 560,421.11/x - Step 3: Cross multiply
990,140.96x = 1,366,160.36 × 560,421.11 - Step 4: Simplify right side
990,140.96x = 765,625,095,756.29 - Step 5: Solve for x
x = 765,625,095,756.29/990,140.96 - Step 6: Final answer
x = 773,248.59
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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.