Finding the Fourth Proportional to 665,990.67, 919,048.46 and 364,178.19
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Solution
The fourth proportional to 665,990.67, 919,048.46 and 364,178.19 is: 502,555.70
Step by Step Solution
- Step 1: Write the proportion equation
665,990.67 : 919,048.46 = 364,178.19 : x - Step 2: Convert to fraction form
665,990.67/919,048.46 = 364,178.19/x - Step 3: Cross multiply
665,990.67x = 919,048.46 × 364,178.19 - Step 4: Simplify right side
665,990.67x = 334,697,404,685.09 - Step 5: Solve for x
x = 334,697,404,685.09/665,990.67 - Step 6: Final answer
x = 502,555.70
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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.