Finding the Fourth Proportional to 528,263.80, 729,134.13 and 324,363.58
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Solution
The fourth proportional to 528,263.80, 729,134.13 and 324,363.58 is: 447,701.62
Step by Step Solution
- Step 1: Write the proportion equation
528,263.80 : 729,134.13 = 324,363.58 : x - Step 2: Convert to fraction form
528,263.80/729,134.13 = 324,363.58/x - Step 3: Cross multiply
528,263.80x = 729,134.13 × 324,363.58 - Step 4: Simplify right side
528,263.80x = 236,504,556,706.99 - Step 5: Solve for x
x = 236,504,556,706.99/528,263.80 - Step 6: Final answer
x = 447,701.62
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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.