Finding the Fourth Proportional to 779,614.13, 1,075,867.49 and 421,918.13
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Solution
The fourth proportional to 779,614.13, 1,075,867.49 and 421,918.13 is: 582,247.01
Step by Step Solution
- Step 1: Write the proportion equation
779,614.13 : 1,075,867.49 = 421,918.13 : x - Step 2: Convert to fraction form
779,614.13/1,075,867.49 = 421,918.13/x - Step 3: Cross multiply
779,614.13x = 1,075,867.49 × 421,918.13 - Step 4: Simplify right side
779,614.13x = 453,927,995,184.05 - Step 5: Solve for x
x = 453,927,995,184.05/779,614.13 - Step 6: Final answer
x = 582,247.01
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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.