Finding the Fourth Proportional to 855,844.72, 1,283,463.11 and 315,985.48
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Solution
The fourth proportional to 855,844.72, 1,283,463.11 and 315,985.48 is: 473,865.99
Step by Step Solution
- Step 1: Write the proportion equation
855,844.72 : 1,283,463.11 = 315,985.48 : x - Step 2: Convert to fraction form
855,844.72/1,283,463.11 = 315,985.48/x - Step 3: Cross multiply
855,844.72x = 1,283,463.11 × 315,985.48 - Step 4: Simplify right side
855,844.72x = 405,555,704,456.95 - Step 5: Solve for x
x = 405,555,704,456.95/855,844.72 - Step 6: Final answer
x = 473,865.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.