Finding the Fourth Proportional to 419,109.10, 631,463.95 and 379,178.75
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Solution
The fourth proportional to 419,109.10, 631,463.95 and 379,178.75 is: 571,301.63
Step by Step Solution
- Step 1: Write the proportion equation
419,109.10 : 631,463.95 = 379,178.75 : x - Step 2: Convert to fraction form
419,109.10/631,463.95 = 379,178.75/x - Step 3: Cross multiply
419,109.10x = 631,463.95 × 379,178.75 - Step 4: Simplify right side
419,109.10x = 239,437,714,350.14 - Step 5: Solve for x
x = 239,437,714,350.14/419,109.10 - Step 6: Final answer
x = 571,301.63
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.