Finding the Fourth Proportional to 949,638, 1,310,499.84 and 519,918.02
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Solution
The fourth proportional to 949,638, 1,310,499.84 and 519,918.02 is: 717,486.53
Step by Step Solution
- Step 1: Write the proportion equation
949,638 : 1,310,499.84 = 519,918.02 : x - Step 2: Convert to fraction form
949,638/1,310,499.84 = 519,918.02/x - Step 3: Cross multiply
949,638x = 1,310,499.84 × 519,918.02 - Step 4: Simplify right side
949,638x = 681,352,475,470.62 - Step 5: Solve for x
x = 681,352,475,470.62/949,638 - Step 6: Final answer
x = 717,486.53
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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.