Finding the Fourth Proportional to 679,642.05, 937,886.20 and 373,718.11
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Solution
The fourth proportional to 679,642.05, 937,886.20 and 373,718.11 is: 515,720.09
Step by Step Solution
- Step 1: Write the proportion equation
679,642.05 : 937,886.20 = 373,718.11 : x - Step 2: Convert to fraction form
679,642.05/937,886.20 = 373,718.11/x - Step 3: Cross multiply
679,642.05x = 937,886.20 × 373,718.11 - Step 4: Simplify right side
679,642.05x = 350,505,058,059.08 - Step 5: Solve for x
x = 350,505,058,059.08/679,642.05 - Step 6: Final answer
x = 515,720.09
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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.