Finding the Fourth Proportional to 780,212.96, 1,169,987.12 and 306,566.06
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Solution
The fourth proportional to 780,212.96, 1,169,987.12 and 306,566.06 is: 459,718.51
Step by Step Solution
- Step 1: Write the proportion equation
780,212.96 : 1,169,987.12 = 306,566.06 : x - Step 2: Convert to fraction form
780,212.96/1,169,987.12 = 306,566.06/x - Step 3: Cross multiply
780,212.96x = 1,169,987.12 × 306,566.06 - Step 4: Simplify right side
780,212.96x = 358,678,341,629.15 - Step 5: Solve for x
x = 358,678,341,629.15/780,212.96 - Step 6: Final answer
x = 459,718.51
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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.