Finding the Fourth Proportional to 949,121.09, 1,309,782.00 and 519,400.20
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Solution
The fourth proportional to 949,121.09, 1,309,782.00 and 519,400.20 is: 716,769.48
Step by Step Solution
- Step 1: Write the proportion equation
949,121.09 : 1,309,782.00 = 519,400.20 : x - Step 2: Convert to fraction form
949,121.09/1,309,782.00 = 519,400.20/x - Step 3: Cross multiply
949,121.09x = 1,309,782.00 × 519,400.20 - Step 4: Simplify right side
949,121.09x = 680,301,029,326.68 - Step 5: Solve for x
x = 680,301,029,326.68/949,121.09 - Step 6: Final answer
x = 716,769.48
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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.