Finding the Fourth Proportional to 612,642.56, 845,485.44 and 344,387.84
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Solution
The fourth proportional to 612,642.56, 845,485.44 and 344,387.84 is: 475,276.98
Step by Step Solution
- Step 1: Write the proportion equation
612,642.56 : 845,485.44 = 344,387.84 : x - Step 2: Convert to fraction form
612,642.56/845,485.44 = 344,387.84/x - Step 3: Cross multiply
612,642.56x = 845,485.44 × 344,387.84 - Step 4: Simplify right side
612,642.56x = 291,174,904,433.05 - Step 5: Solve for x
x = 291,174,904,433.05/612,642.56 - Step 6: Final answer
x = 475,276.98
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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.