Finding the Fourth Proportional to 779,508.88, 1,075,725.49 and 421,812.88
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Solution
The fourth proportional to 779,508.88, 1,075,725.49 and 421,812.88 is: 582,103.53
Step by Step Solution
- Step 1: Write the proportion equation
779,508.88 : 1,075,725.49 = 421,812.88 : x - Step 2: Convert to fraction form
779,508.88/1,075,725.49 = 421,812.88/x - Step 3: Cross multiply
779,508.88x = 1,075,725.49 × 421,812.88 - Step 4: Simplify right side
779,508.88x = 453,754,867,026.31 - Step 5: Solve for x
x = 453,754,867,026.31/779,508.88 - Step 6: Final answer
x = 582,103.53
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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.