Finding the Fourth Proportional to 515,769.68, 711,750.60 and 286,313.48
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Solution
The fourth proportional to 515,769.68, 711,750.60 and 286,313.48 is: 395,106.19
Step by Step Solution
- Step 1: Write the proportion equation
515,769.68 : 711,750.60 = 286,313.48 : x - Step 2: Convert to fraction form
515,769.68/711,750.60 = 286,313.48/x - Step 3: Cross multiply
515,769.68x = 711,750.60 × 286,313.48 - Step 4: Simplify right side
515,769.68x = 203,783,791,178.09 - Step 5: Solve for x
x = 203,783,791,178.09/515,769.68 - Step 6: Final answer
x = 395,106.19
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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.