Finding the Fourth Proportional to 845,747.90, 1,268,305.66 and 340,138.02
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Solution
The fourth proportional to 845,747.90, 1,268,305.66 and 340,138.02 is: 510,079.87
Step by Step Solution
- Step 1: Write the proportion equation
845,747.90 : 1,268,305.66 = 340,138.02 : x - Step 2: Convert to fraction form
845,747.90/1,268,305.66 = 340,138.02/x - Step 3: Cross multiply
845,747.90x = 1,268,305.66 × 340,138.02 - Step 4: Simplify right side
845,747.90x = 431,398,975,947.19 - Step 5: Solve for x
x = 431,398,975,947.19/845,747.90 - Step 6: Final answer
x = 510,079.87
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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.