Finding the Fourth Proportional to 879,415.20, 1,319,122.80 and 574,984.80
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Solution
The fourth proportional to 879,415.20, 1,319,122.80 and 574,984.80 is: 862,477.20
Step by Step Solution
- Step 1: Write the proportion equation
879,415.20 : 1,319,122.80 = 574,984.80 : x - Step 2: Convert to fraction form
879,415.20/1,319,122.80 = 574,984.80/x - Step 3: Cross multiply
879,415.20x = 1,319,122.80 × 574,984.80 - Step 4: Simplify right side
879,415.20x = 758,475,559,333.44 - Step 5: Solve for x
x = 758,475,559,333.44/879,415.20 - Step 6: Final answer
x = 862,477.20
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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.