Finding the Fourth Proportional to 812,547.76, 1,218,156.68 and 306,821.84
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Solution
The fourth proportional to 812,547.76, 1,218,156.68 and 306,821.84 is: 459,981.67
Step by Step Solution
- Step 1: Write the proportion equation
812,547.76 : 1,218,156.68 = 306,821.84 : x - Step 2: Convert to fraction form
812,547.76/1,218,156.68 = 306,821.84/x - Step 3: Cross multiply
812,547.76x = 1,218,156.68 × 306,821.84 - Step 4: Simplify right side
812,547.76x = 373,757,073,965.89 - Step 5: Solve for x
x = 373,757,073,965.89/812,547.76 - Step 6: Final answer
x = 459,981.67
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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.