Finding the Fourth Proportional to 779,595.75, 1,075,842.14 and 421,899.75
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Solution
The fourth proportional to 779,595.75, 1,075,842.14 and 421,899.75 is: 582,221.66
Step by Step Solution
- Step 1: Write the proportion equation
779,595.75 : 1,075,842.14 = 421,899.75 : x - Step 2: Convert to fraction form
779,595.75/1,075,842.14 = 421,899.75/x - Step 3: Cross multiply
779,595.75x = 1,075,842.14 × 421,899.75 - Step 4: Simplify right side
779,595.75x = 453,897,527,795.97 - Step 5: Solve for x
x = 453,897,527,795.97/779,595.75 - Step 6: Final answer
x = 582,221.66
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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.