Finding the Fourth Proportional to 818,442.18, 1,129,477.14 and 450,899.82
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Solution
The fourth proportional to 818,442.18, 1,129,477.14 and 450,899.82 is: 622,256.59
Step by Step Solution
- Step 1: Write the proportion equation
818,442.18 : 1,129,477.14 = 450,899.82 : x - Step 2: Convert to fraction form
818,442.18/1,129,477.14 = 450,899.82/x - Step 3: Cross multiply
818,442.18x = 1,129,477.14 × 450,899.82 - Step 4: Simplify right side
818,442.18x = 509,281,039,120.12 - Step 5: Solve for x
x = 509,281,039,120.12/818,442.18 - Step 6: Final answer
x = 622,256.59
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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.