Finding the Fourth Proportional to 515,785.49, 773,641.63 and 136,697.79
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Solution
The fourth proportional to 515,785.49, 773,641.63 and 136,697.79 is: 205,036.99
Step by Step Solution
- Step 1: Write the proportion equation
515,785.49 : 773,641.63 = 136,697.79 : x - Step 2: Convert to fraction form
515,785.49/773,641.63 = 136,697.79/x - Step 3: Cross multiply
515,785.49x = 773,641.63 × 136,697.79 - Step 4: Simplify right side
515,785.49x = 105,755,104,145.03 - Step 5: Solve for x
x = 105,755,104,145.03/515,785.49 - Step 6: Final answer
x = 205,036.99
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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.