Finding the Fourth Proportional to 868,966.18, 1,199,107.19 and 486,919.15
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Solution
The fourth proportional to 868,966.18, 1,199,107.19 and 486,919.15 is: 671,911.37
Step by Step Solution
- Step 1: Write the proportion equation
868,966.18 : 1,199,107.19 = 486,919.15 : x - Step 2: Convert to fraction form
868,966.18/1,199,107.19 = 486,919.15/x - Step 3: Cross multiply
868,966.18x = 1,199,107.19 × 486,919.15 - Step 4: Simplify right side
868,966.18x = 583,868,251,933.22 - Step 5: Solve for x
x = 583,868,251,933.22/868,966.18 - Step 6: Final answer
x = 671,911.37
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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.