Finding the Fourth Proportional to 620,119.64, 855,814.74 and 348,205.62
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Solution
The fourth proportional to 620,119.64, 855,814.74 and 348,205.62 is: 480,551.63
Step by Step Solution
- Step 1: Write the proportion equation
620,119.64 : 855,814.74 = 348,205.62 : x - Step 2: Convert to fraction form
620,119.64/855,814.74 = 348,205.62/x - Step 3: Cross multiply
620,119.64x = 855,814.74 × 348,205.62 - Step 4: Simplify right side
620,119.64x = 297,999,502,146.84 - Step 5: Solve for x
x = 297,999,502,146.84/620,119.64 - Step 6: Final answer
x = 480,551.63
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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.