Finding the Fourth Proportional to 515,998.80, 772,831.80 and 306,046.80
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Solution
The fourth proportional to 515,998.80, 772,831.80 and 306,046.80 is: 458,378.39
Step by Step Solution
- Step 1: Write the proportion equation
515,998.80 : 772,831.80 = 306,046.80 : x - Step 2: Convert to fraction form
515,998.80/772,831.80 = 306,046.80/x - Step 3: Cross multiply
515,998.80x = 772,831.80 × 306,046.80 - Step 4: Simplify right side
515,998.80x = 236,522,699,328.24 - Step 5: Solve for x
x = 236,522,699,328.24/515,998.80 - Step 6: Final answer
x = 458,378.39
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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.