Finding the Fourth Proportional to 519,887.70, 779,831.55 and 283,691.70
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Solution
The fourth proportional to 519,887.70, 779,831.55 and 283,691.70 is: 425,537.55
Step by Step Solution
- Step 1: Write the proportion equation
519,887.70 : 779,831.55 = 283,691.70 : x - Step 2: Convert to fraction form
519,887.70/779,831.55 = 283,691.70/x - Step 3: Cross multiply
519,887.70x = 779,831.55 × 283,691.70 - Step 4: Simplify right side
519,887.70x = 221,231,738,133.14 - Step 5: Solve for x
x = 221,231,738,133.14/519,887.70 - Step 6: Final answer
x = 425,537.55
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1.5x scale
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.