Finding the Fourth Proportional to 940,677.12, 1,298,157.84 and 510,957.12
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Solution
The fourth proportional to 940,677.12, 1,298,157.84 and 510,957.12 is: 705,133.54
Step by Step Solution
- Step 1: Write the proportion equation
940,677.12 : 1,298,157.84 = 510,957.12 : x - Step 2: Convert to fraction form
940,677.12/1,298,157.84 = 510,957.12/x - Step 3: Cross multiply
940,677.12x = 1,298,157.84 × 510,957.12 - Step 4: Simplify right side
940,677.12x = 663,302,991,231.82 - Step 5: Solve for x
x = 663,302,991,231.82/940,677.12 - Step 6: Final answer
x = 705,133.54
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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.