Finding the Fourth Proportional to 809,143.80, 1,214,201.70 and 335,779.80
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Solution
The fourth proportional to 809,143.80, 1,214,201.70 and 335,779.80 is: 503,871.38
Step by Step Solution
- Step 1: Write the proportion equation
809,143.80 : 1,214,201.70 = 335,779.80 : x - Step 2: Convert to fraction form
809,143.80/1,214,201.70 = 335,779.80/x - Step 3: Cross multiply
809,143.80x = 1,214,201.70 × 335,779.80 - Step 4: Simplify right side
809,143.80x = 407,704,403,985.66 - Step 5: Solve for x
x = 407,704,403,985.66/809,143.80 - Step 6: Final answer
x = 503,871.38
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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.