Finding the Fourth Proportional to 519,120.64, 778,306.96 and 319,027.44
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Solution
The fourth proportional to 519,120.64, 778,306.96 and 319,027.44 is: 478,311.32
Step by Step Solution
- Step 1: Write the proportion equation
519,120.64 : 778,306.96 = 319,027.44 : x - Step 2: Convert to fraction form
519,120.64/778,306.96 = 319,027.44/x - Step 3: Cross multiply
519,120.64x = 778,306.96 × 319,027.44 - Step 4: Simplify right side
519,120.64x = 248,301,276,982.98 - Step 5: Solve for x
x = 248,301,276,982.98/519,120.64 - Step 6: Final answer
x = 478,311.32
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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.