Finding the Fourth Proportional to 1,069,179.21, 1,475,466.84 and 639,459.36
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Solution
The fourth proportional to 1,069,179.21, 1,475,466.84 and 639,459.36 is: 882,453.64
Step by Step Solution
- Step 1: Write the proportion equation
1,069,179.21 : 1,475,466.84 = 639,459.36 : x - Step 2: Convert to fraction form
1,069,179.21/1,475,466.84 = 639,459.36/x - Step 3: Cross multiply
1,069,179.21x = 1,475,466.84 × 639,459.36 - Step 4: Simplify right side
1,069,179.21x = 943,501,081,207.62 - Step 5: Solve for x
x = 943,501,081,207.62/1,069,179.21 - Step 6: Final answer
x = 882,453.64
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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.