Finding the Fourth Proportional to 639,463.33, 882,249.82 and 455,730.84
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Solution
The fourth proportional to 639,463.33, 882,249.82 and 455,730.84 is: 628,759.20
Step by Step Solution
- Step 1: Write the proportion equation
639,463.33 : 882,249.82 = 455,730.84 : x - Step 2: Convert to fraction form
639,463.33/882,249.82 = 455,730.84/x - Step 3: Cross multiply
639,463.33x = 882,249.82 × 455,730.84 - Step 4: Simplify right side
639,463.33x = 402,068,448,213.50 - Step 5: Solve for x
x = 402,068,448,213.50/639,463.33 - Step 6: Final answer
x = 628,759.20
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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.