Finding the Fourth Proportional to 991,069.44, 1,367,637.12 and 561,373.44
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Solution
The fourth proportional to 991,069.44, 1,367,637.12 and 561,373.44 is: 774,673.42
Step by Step Solution
- Step 1: Write the proportion equation
991,069.44 : 1,367,637.12 = 561,373.44 : x - Step 2: Convert to fraction form
991,069.44/1,367,637.12 = 561,373.44/x - Step 3: Cross multiply
991,069.44x = 1,367,637.12 × 561,373.44 - Step 4: Simplify right side
991,069.44x = 767,755,154,726.09 - Step 5: Solve for x
x = 767,755,154,726.09/991,069.44 - Step 6: Final answer
x = 774,673.42
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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.