Finding the Fourth Proportional to 809,762.20, 1,214,643.30 and 277,235.80
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Solution
The fourth proportional to 809,762.20, 1,214,643.30 and 277,235.80 is: 415,853.70
Step by Step Solution
- Step 1: Write the proportion equation
809,762.20 : 1,214,643.30 = 277,235.80 : x - Step 2: Convert to fraction form
809,762.20/1,214,643.30 = 277,235.80/x - Step 3: Cross multiply
809,762.20x = 1,214,643.30 × 277,235.80 - Step 4: Simplify right side
809,762.20x = 336,742,606,990.14 - Step 5: Solve for x
x = 336,742,606,990.14/809,762.20 - Step 6: Final answer
x = 415,853.70
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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.