Finding the Fourth Proportional to 768,829.60, 1,153,125.73 and 256,503.79
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Solution
The fourth proportional to 768,829.60, 1,153,125.73 and 256,503.79 is: 384,716.09
Step by Step Solution
- Step 1: Write the proportion equation
768,829.60 : 1,153,125.73 = 256,503.79 : x - Step 2: Convert to fraction form
768,829.60/1,153,125.73 = 256,503.79/x - Step 3: Cross multiply
768,829.60x = 1,153,125.73 × 256,503.79 - Step 4: Simplify right side
768,829.60x = 295,781,120,091.52 - Step 5: Solve for x
x = 295,781,120,091.52/768,829.60 - Step 6: Final answer
x = 384,716.09
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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.