Finding the Fourth Proportional to 519,745.20, 779,617.80 and 283,549.20
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Solution
The fourth proportional to 519,745.20, 779,617.80 and 283,549.20 is: 425,323.80
Step by Step Solution
- Step 1: Write the proportion equation
519,745.20 : 779,617.80 = 283,549.20 : x - Step 2: Convert to fraction form
519,745.20/779,617.80 = 283,549.20/x - Step 3: Cross multiply
519,745.20x = 779,617.80 × 283,549.20 - Step 4: Simplify right side
519,745.20x = 221,060,003,495.76 - Step 5: Solve for x
x = 221,060,003,495.76/519,745.20 - Step 6: Final answer
x = 425,323.80
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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.