Finding the Fourth Proportional to 611,991.12, 844,305.75 and 353,820.63
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Solution
The fourth proportional to 611,991.12, 844,305.75 and 353,820.63 is: 488,132.56
Step by Step Solution
- Step 1: Write the proportion equation
611,991.12 : 844,305.75 = 353,820.63 : x - Step 2: Convert to fraction form
611,991.12/844,305.75 = 353,820.63/x - Step 3: Cross multiply
611,991.12x = 844,305.75 × 353,820.63 - Step 4: Simplify right side
611,991.12x = 298,732,792,377.62 - Step 5: Solve for x
x = 298,732,792,377.62/611,991.12 - Step 6: Final answer
x = 488,132.56
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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.