Finding the Fourth Proportional to 785,441.68, 1,178,138.96 and 216,857.48
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Solution
The fourth proportional to 785,441.68, 1,178,138.96 and 216,857.48 is: 325,279.72
Step by Step Solution
- Step 1: Write the proportion equation
785,441.68 : 1,178,138.96 = 216,857.48 : x - Step 2: Convert to fraction form
785,441.68/1,178,138.96 = 216,857.48/x - Step 3: Cross multiply
785,441.68x = 1,178,138.96 × 216,857.48 - Step 4: Simplify right side
785,441.68x = 255,488,245,955.42 - Step 5: Solve for x
x = 255,488,245,955.42/785,441.68 - Step 6: Final answer
x = 325,279.72
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.