Finding the Fourth Proportional to 872,171.96, 1,203,697.06 and 485,025.98
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Solution
The fourth proportional to 872,171.96, 1,203,697.06 and 485,025.98 is: 669,391.32
Step by Step Solution
- Step 1: Write the proportion equation
872,171.96 : 1,203,697.06 = 485,025.98 : x - Step 2: Convert to fraction form
872,171.96/1,203,697.06 = 485,025.98/x - Step 3: Cross multiply
872,171.96x = 1,203,697.06 × 485,025.98 - Step 4: Simplify right side
872,171.96x = 583,824,338,918.57 - Step 5: Solve for x
x = 583,824,338,918.57/872,171.96 - Step 6: Final answer
x = 669,391.32
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1.5x scale
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.