Finding the Fourth Proportional to 935,619.21, 1,291,155.26 and 505,899.63
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Solution
The fourth proportional to 935,619.21, 1,291,155.26 and 505,899.63 is: 698,141.89
Step by Step Solution
- Step 1: Write the proportion equation
935,619.21 : 1,291,155.26 = 505,899.63 : x - Step 2: Convert to fraction form
935,619.21/1,291,155.26 = 505,899.63/x - Step 3: Cross multiply
935,619.21x = 1,291,155.26 × 505,899.63 - Step 4: Simplify right side
935,619.21x = 653,194,965,777.06 - Step 5: Solve for x
x = 653,194,965,777.06/935,619.21 - Step 6: Final answer
x = 698,141.89
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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.