Finding the Fourth Proportional to 521,970.99, 720,307.99 and 304,165.80
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Solution
The fourth proportional to 521,970.99, 720,307.99 and 304,165.80 is: 419,741.83
Step by Step Solution
- Step 1: Write the proportion equation
521,970.99 : 720,307.99 = 304,165.80 : x - Step 2: Convert to fraction form
521,970.99/720,307.99 = 304,165.80/x - Step 3: Cross multiply
521,970.99x = 720,307.99 × 304,165.80 - Step 4: Simplify right side
521,970.99x = 219,093,056,404.95 - Step 5: Solve for x
x = 219,093,056,404.95/521,970.99 - Step 6: Final answer
x = 419,741.83
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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.