Finding the Fourth Proportional to 538,609.20, 808,351.20 and 521,113.20
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Solution
The fourth proportional to 538,609.20, 808,351.20 and 521,113.20 is: 782,092.99
Step by Step Solution
- Step 1: Write the proportion equation
538,609.20 : 808,351.20 = 521,113.20 : x - Step 2: Convert to fraction form
538,609.20/808,351.20 = 521,113.20/x - Step 3: Cross multiply
538,609.20x = 808,351.20 × 521,113.20 - Step 4: Simplify right side
538,609.20x = 421,242,480,555.84 - Step 5: Solve for x
x = 421,242,480,555.84/538,609.20 - Step 6: Final answer
x = 782,092.99
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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.