Finding the Fourth Proportional to 872,078.50, 1,203,197.86 and 509,240.62
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Solution
The fourth proportional to 872,078.50, 1,203,197.86 and 509,240.62 is: 702,594.12
Step by Step Solution
- Step 1: Write the proportion equation
872,078.50 : 1,203,197.86 = 509,240.62 : x - Step 2: Convert to fraction form
872,078.50/1,203,197.86 = 509,240.62/x - Step 3: Cross multiply
872,078.50x = 1,203,197.86 × 509,240.62 - Step 4: Simplify right side
872,078.50x = 612,717,224,209.07 - Step 5: Solve for x
x = 612,717,224,209.07/872,078.50 - Step 6: Final answer
x = 702,594.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.