Finding the Fourth Proportional to 779,600.13, 1,075,848.18 and 421,904.13
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Solution
The fourth proportional to 779,600.13, 1,075,848.18 and 421,904.13 is: 582,227.70
Step by Step Solution
- Step 1: Write the proportion equation
779,600.13 : 1,075,848.18 = 421,904.13 : x - Step 2: Convert to fraction form
779,600.13/1,075,848.18 = 421,904.13/x - Step 3: Cross multiply
779,600.13x = 1,075,848.18 × 421,904.13 - Step 4: Simplify right side
779,600.13x = 453,904,790,394.98 - Step 5: Solve for x
x = 453,904,790,394.98/779,600.13 - Step 6: Final answer
x = 582,227.70
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1.5x scale
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.