Finding the Fourth Proportional to 515,079.60, 772,400.70 and 248,921.70
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Solution
The fourth proportional to 515,079.60, 772,400.70 and 248,921.70 is: 373,276.86
Step by Step Solution
- Step 1: Write the proportion equation
515,079.60 : 772,400.70 = 248,921.70 : x - Step 2: Convert to fraction form
515,079.60/772,400.70 = 248,921.70/x - Step 3: Cross multiply
515,079.60x = 772,400.70 × 248,921.70 - Step 4: Simplify right side
515,079.60x = 192,267,295,325.19 - Step 5: Solve for x
x = 192,267,295,325.19/515,079.60 - Step 6: Final answer
x = 373,276.86
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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.