Finding the Fourth Proportional to 519,883.70, 779,825.55 and 283,687.70
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Solution
The fourth proportional to 519,883.70, 779,825.55 and 283,687.70 is: 425,531.55
Step by Step Solution
- Step 1: Write the proportion equation
519,883.70 : 779,825.55 = 283,687.70 : x - Step 2: Convert to fraction form
519,883.70/779,825.55 = 283,687.70/x - Step 3: Cross multiply
519,883.70x = 779,825.55 × 283,687.70 - Step 4: Simplify right side
519,883.70x = 221,226,916,680.74 - Step 5: Solve for x
x = 221,226,916,680.74/519,883.70 - Step 6: Final answer
x = 425,531.55
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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.