Finding the Fourth Proportional to 901,378.63, 1,243,902.79 and 493,506.37
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Solution
The fourth proportional to 901,378.63, 1,243,902.79 and 493,506.37 is: 681,038.95
Step by Step Solution
- Step 1: Write the proportion equation
901,378.63 : 1,243,902.79 = 493,506.37 : x - Step 2: Convert to fraction form
901,378.63/1,243,902.79 = 493,506.37/x - Step 3: Cross multiply
901,378.63x = 1,243,902.79 × 493,506.37 - Step 4: Simplify right side
901,378.63x = 613,873,952,697.53 - Step 5: Solve for x
x = 613,873,952,697.53/901,378.63 - Step 6: Final answer
x = 681,038.95
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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.