Finding the Fourth Proportional to 486,369.83, 671,201.64 and 305,089.40
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Solution
The fourth proportional to 486,369.83, 671,201.64 and 305,089.40 is: 421,030.45
Step by Step Solution
- Step 1: Write the proportion equation
486,369.83 : 671,201.64 = 305,089.40 : x - Step 2: Convert to fraction form
486,369.83/671,201.64 = 305,089.40/x - Step 3: Cross multiply
486,369.83x = 671,201.64 × 305,089.40 - Step 4: Simplify right side
486,369.83x = 204,776,507,304.62 - Step 5: Solve for x
x = 204,776,507,304.62/486,369.83 - Step 6: Final answer
x = 421,030.45
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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.