Finding the Fourth Proportional to 901,342.21, 1,243,850.33 and 493,440.74
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Solution
The fourth proportional to 901,342.21, 1,243,850.33 and 493,440.74 is: 680,947.17
Step by Step Solution
- Step 1: Write the proportion equation
901,342.21 : 1,243,850.33 = 493,440.74 : x - Step 2: Convert to fraction form
901,342.21/1,243,850.33 = 493,440.74/x - Step 3: Cross multiply
901,342.21x = 1,243,850.33 × 493,440.74 - Step 4: Simplify right side
901,342.21x = 613,766,420,689.30 - Step 5: Solve for x
x = 613,766,420,689.30/901,342.21 - Step 6: Final answer
x = 680,947.17
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1.5x scale
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.