Finding the Fourth Proportional to 319,507.23, 476,644.29 and 310,820.05
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Solution
The fourth proportional to 319,507.23, 476,644.29 and 310,820.05 is: 463,684.65
Step by Step Solution
- Step 1: Write the proportion equation
319,507.23 : 476,644.29 = 310,820.05 : x - Step 2: Convert to fraction form
319,507.23/476,644.29 = 310,820.05/x - Step 3: Cross multiply
319,507.23x = 476,644.29 × 310,820.05 - Step 4: Simplify right side
319,507.23x = 148,150,598,112.69 - Step 5: Solve for x
x = 148,150,598,112.69/319,507.23 - Step 6: Final answer
x = 463,684.65
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.