Finding the Fourth Proportional to 521,678.88, 719,857.80 and 292,204.80
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Solution
The fourth proportional to 521,678.88, 719,857.80 and 292,204.80 is: 403,209.55
Step by Step Solution
- Step 1: Write the proportion equation
521,678.88 : 719,857.80 = 292,204.80 : x - Step 2: Convert to fraction form
521,678.88/719,857.80 = 292,204.80/x - Step 3: Cross multiply
521,678.88x = 719,857.80 × 292,204.80 - Step 4: Simplify right side
521,678.88x = 210,345,904,477.44 - Step 5: Solve for x
x = 210,345,904,477.44/521,678.88 - Step 6: Final answer
x = 403,209.55
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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.