Finding the Fourth Proportional to 519,792.12, 717,486.12 and 304,853.76
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Solution
The fourth proportional to 519,792.12, 717,486.12 and 304,853.76 is: 420,799.65
Step by Step Solution
- Step 1: Write the proportion equation
519,792.12 : 717,486.12 = 304,853.76 : x - Step 2: Convert to fraction form
519,792.12/717,486.12 = 304,853.76/x - Step 3: Cross multiply
519,792.12x = 717,486.12 × 304,853.76 - Step 4: Simplify right side
519,792.12x = 218,728,341,429.81 - Step 5: Solve for x
x = 218,728,341,429.81/519,792.12 - Step 6: Final answer
x = 420,799.65
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1.5x scale
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.