Finding the Fourth Proportional to 397,984.80, 596,102.40 and 319,252.80
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Solution
The fourth proportional to 397,984.80, 596,102.40 and 319,252.80 is: 478,177.46
Step by Step Solution
- Step 1: Write the proportion equation
397,984.80 : 596,102.40 = 319,252.80 : x - Step 2: Convert to fraction form
397,984.80/596,102.40 = 319,252.80/x - Step 3: Cross multiply
397,984.80x = 596,102.40 × 319,252.80 - Step 4: Simplify right side
397,984.80x = 190,307,360,286.72 - Step 5: Solve for x
x = 190,307,360,286.72/397,984.80 - Step 6: Final answer
x = 478,177.46
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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.