Finding the Fourth Proportional to 519,752.82, 717,270.66 and 305,047.74
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Solution
The fourth proportional to 519,752.82, 717,270.66 and 305,047.74 is: 420,972.79
Step by Step Solution
- Step 1: Write the proportion equation
519,752.82 : 717,270.66 = 305,047.74 : x - Step 2: Convert to fraction form
519,752.82/717,270.66 = 305,047.74/x - Step 3: Cross multiply
519,752.82x = 717,270.66 × 305,047.74 - Step 4: Simplify right side
519,752.82x = 218,801,793,801.31 - Step 5: Solve for x
x = 218,801,793,801.31/519,752.82 - Step 6: Final answer
x = 420,972.79
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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.