Finding the Fourth Proportional to 829,108.10, 1,243,670.36 and 349,416.99
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Solution
The fourth proportional to 829,108.10, 1,243,670.36 and 349,416.99 is: 524,128.94
Step by Step Solution
- Step 1: Write the proportion equation
829,108.10 : 1,243,670.36 = 349,416.99 : x - Step 2: Convert to fraction form
829,108.10/1,243,670.36 = 349,416.99/x - Step 3: Cross multiply
829,108.10x = 1,243,670.36 × 349,416.99 - Step 4: Simplify right side
829,108.10x = 434,559,551,996.33 - Step 5: Solve for x
x = 434,559,551,996.33/829,108.10 - Step 6: Final answer
x = 524,128.94
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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.