Finding the Fourth Proportional to 779,587.44, 1,075,830.84 and 421,891.44
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Solution
The fourth proportional to 779,587.44, 1,075,830.84 and 421,891.44 is: 582,210.28
Step by Step Solution
- Step 1: Write the proportion equation
779,587.44 : 1,075,830.84 = 421,891.44 : x - Step 2: Convert to fraction form
779,587.44/1,075,830.84 = 421,891.44/x - Step 3: Cross multiply
779,587.44x = 1,075,830.84 × 421,891.44 - Step 4: Simplify right side
779,587.44x = 453,883,822,284.01 - Step 5: Solve for x
x = 453,883,822,284.01/779,587.44 - Step 6: Final answer
x = 582,210.28
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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.