Finding the Fourth Proportional to 559,817.16, 772,519.74 and 318,067.80
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Solution
The fourth proportional to 559,817.16, 772,519.74 and 318,067.80 is: 438,917.69
Step by Step Solution
- Step 1: Write the proportion equation
559,817.16 : 772,519.74 = 318,067.80 : x - Step 2: Convert to fraction form
559,817.16/772,519.74 = 318,067.80/x - Step 3: Cross multiply
559,817.16x = 772,519.74 × 318,067.80 - Step 4: Simplify right side
559,817.16x = 245,713,654,158.37 - Step 5: Solve for x
x = 245,713,654,158.37/559,817.16 - Step 6: Final answer
x = 438,917.69
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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.