Finding the Fourth Proportional to 612,093.70, 918,140.55 and 472,125.70
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Solution
The fourth proportional to 612,093.70, 918,140.55 and 472,125.70 is: 708,188.55
Step by Step Solution
- Step 1: Write the proportion equation
612,093.70 : 918,140.55 = 472,125.70 : x - Step 2: Convert to fraction form
612,093.70/918,140.55 = 472,125.70/x - Step 3: Cross multiply
612,093.70x = 918,140.55 × 472,125.70 - Step 4: Simplify right side
612,093.70x = 433,477,749,867.14 - Step 5: Solve for x
x = 433,477,749,867.14/612,093.70 - Step 6: Final answer
x = 708,188.55
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1.5x scale
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.