Finding the Fourth Proportional to 826,485.19, 1,239,246.07 and 320,455.01
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Solution
The fourth proportional to 826,485.19, 1,239,246.07 and 320,455.01 is: 480,495.74
Step by Step Solution
- Step 1: Write the proportion equation
826,485.19 : 1,239,246.07 = 320,455.01 : x - Step 2: Convert to fraction form
826,485.19/1,239,246.07 = 320,455.01/x - Step 3: Cross multiply
826,485.19x = 1,239,246.07 × 320,455.01 - Step 4: Simplify right side
826,485.19x = 397,122,611,754.31 - Step 5: Solve for x
x = 397,122,611,754.31/826,485.19 - Step 6: Final answer
x = 480,495.74
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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.