Finding the Fourth Proportional to 779,605.14, 1,075,855.11 and 421,909.14
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Solution
The fourth proportional to 779,605.14, 1,075,855.11 and 421,909.14 is: 582,234.62
Step by Step Solution
- Step 1: Write the proportion equation
779,605.14 : 1,075,855.11 = 421,909.14 : x - Step 2: Convert to fraction form
779,605.14/1,075,855.11 = 421,909.14/x - Step 3: Cross multiply
779,605.14x = 1,075,855.11 × 421,909.14 - Step 4: Simplify right side
779,605.14x = 453,913,104,224.71 - Step 5: Solve for x
x = 453,913,104,224.71/779,605.14 - Step 6: Final answer
x = 582,234.62
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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.