Finding the Fourth Proportional to 1,269,988.39, 1,752,596.81 and 689,216.53
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Solution
The fourth proportional to 1,269,988.39, 1,752,596.81 and 689,216.53 is: 951,125.77
Step by Step Solution
- Step 1: Write the proportion equation
1,269,988.39 : 1,752,596.81 = 689,216.53 : x - Step 2: Convert to fraction form
1,269,988.39/1,752,596.81 = 689,216.53/x - Step 3: Cross multiply
1,269,988.39x = 1,752,596.81 × 689,216.53 - Step 4: Simplify right side
1,269,988.39x = 1,207,918,690,621.93 - Step 5: Solve for x
x = 1,207,918,690,621.93/1,269,988.39 - Step 6: Final answer
x = 951,125.77
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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.