Finding the Fourth Proportional to 519,924.06, 717,543.09 and 315,927.90
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Solution
The fourth proportional to 519,924.06, 717,543.09 and 315,927.90 is: 436,009.60
Step by Step Solution
- Step 1: Write the proportion equation
519,924.06 : 717,543.09 = 315,927.90 : x - Step 2: Convert to fraction form
519,924.06/717,543.09 = 315,927.90/x - Step 3: Cross multiply
519,924.06x = 717,543.09 × 315,927.90 - Step 4: Simplify right side
519,924.06x = 226,691,881,583.21 - Step 5: Solve for x
x = 226,691,881,583.21/519,924.06 - Step 6: Final answer
x = 436,009.60
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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.