Finding the Fourth Proportional to 779,604.63, 1,075,854.38 and 421,908.63
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Solution
The fourth proportional to 779,604.63, 1,075,854.38 and 421,908.63 is: 582,233.90
Step by Step Solution
- Step 1: Write the proportion equation
779,604.63 : 1,075,854.38 = 421,908.63 : x - Step 2: Convert to fraction form
779,604.63/1,075,854.38 = 421,908.63/x - Step 3: Cross multiply
779,604.63x = 1,075,854.38 × 421,908.63 - Step 4: Simplify right side
779,604.63x = 453,912,247,545.30 - Step 5: Solve for x
x = 453,912,247,545.30/779,604.63 - Step 6: Final answer
x = 582,233.90
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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.