Finding the Fourth Proportional to 818,305.88, 1,129,297.16 and 455,729.74
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Solution
The fourth proportional to 818,305.88, 1,129,297.16 and 455,729.74 is: 628,926.55
Step by Step Solution
- Step 1: Write the proportion equation
818,305.88 : 1,129,297.16 = 455,729.74 : x - Step 2: Convert to fraction form
818,305.88/1,129,297.16 = 455,729.74/x - Step 3: Cross multiply
818,305.88x = 1,129,297.16 × 455,729.74 - Step 4: Simplify right side
818,305.88x = 514,654,299,425.62 - Step 5: Solve for x
x = 514,654,299,425.62/818,305.88 - Step 6: Final answer
x = 628,926.55
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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.