Finding the Fourth Proportional to 1,104,415.40, 1,657,497.90 and 430,819.40
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Solution
The fourth proportional to 1,104,415.40, 1,657,497.90 and 430,819.40 is: 646,570.35
Step by Step Solution
- Step 1: Write the proportion equation
1,104,415.40 : 1,657,497.90 = 430,819.40 : x - Step 2: Convert to fraction form
1,104,415.40/1,657,497.90 = 430,819.40/x - Step 3: Cross multiply
1,104,415.40x = 1,657,497.90 × 430,819.40 - Step 4: Simplify right side
1,104,415.40x = 714,082,250,779.26 - Step 5: Solve for x
x = 714,082,250,779.26/1,104,415.40 - Step 6: Final answer
x = 646,570.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.