Finding the Fourth Proportional to 808,575.77, 1,115,815.02 and 445,991.84
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Solution
The fourth proportional to 808,575.77, 1,115,815.02 and 445,991.84 is: 615,457.96
Step by Step Solution
- Step 1: Write the proportion equation
808,575.77 : 1,115,815.02 = 445,991.84 : x - Step 2: Convert to fraction form
808,575.77/1,115,815.02 = 445,991.84/x - Step 3: Cross multiply
808,575.77x = 1,115,815.02 × 445,991.84 - Step 4: Simplify right side
808,575.77x = 497,644,393,869.44 - Step 5: Solve for x
x = 497,644,393,869.44/808,575.77 - Step 6: Final answer
x = 615,457.96
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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.