Finding the Fourth Proportional to 808,939.12, 1,116,740.14 and 503,114.09
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Solution
The fourth proportional to 808,939.12, 1,116,740.14 and 503,114.09 is: 694,548.80
Step by Step Solution
- Step 1: Write the proportion equation
808,939.12 : 1,116,740.14 = 503,114.09 : x - Step 2: Convert to fraction form
808,939.12/1,116,740.14 = 503,114.09/x - Step 3: Cross multiply
808,939.12x = 1,116,740.14 × 503,114.09 - Step 4: Simplify right side
808,939.12x = 561,847,695,291.10 - Step 5: Solve for x
x = 561,847,695,291.10/808,939.12 - Step 6: Final answer
x = 694,548.80
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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.