Finding the Fourth Proportional to 509,636.48, 703,298.79 and 280,197.68
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Solution
The fourth proportional to 509,636.48, 703,298.79 and 280,197.68 is: 386,673.04
Step by Step Solution
- Step 1: Write the proportion equation
509,636.48 : 703,298.79 = 280,197.68 : x - Step 2: Convert to fraction form
509,636.48/703,298.79 = 280,197.68/x - Step 3: Cross multiply
509,636.48x = 703,298.79 × 280,197.68 - Step 4: Simplify right side
509,636.48x = 197,062,685,788.31 - Step 5: Solve for x
x = 197,062,685,788.31/509,636.48 - Step 6: Final answer
x = 386,673.04
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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.