Finding the Fourth Proportional to 612,475.38, 918,899.55 and 313,166.19
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Solution
The fourth proportional to 612,475.38, 918,899.55 and 313,166.19 is: 469,844.63
Step by Step Solution
- Step 1: Write the proportion equation
612,475.38 : 918,899.55 = 313,166.19 : x - Step 2: Convert to fraction form
612,475.38/918,899.55 = 313,166.19/x - Step 3: Cross multiply
612,475.38x = 918,899.55 × 313,166.19 - Step 4: Simplify right side
612,475.38x = 287,768,271,066.22 - Step 5: Solve for x
x = 287,768,271,066.22/612,475.38 - Step 6: Final answer
x = 469,844.63
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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.