Finding the Fourth Proportional to 814,170.18, 1,123,689.40 and 451,710.84
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Solution
The fourth proportional to 814,170.18, 1,123,689.40 and 451,710.84 is: 623,435.61
Step by Step Solution
- Step 1: Write the proportion equation
814,170.18 : 1,123,689.40 = 451,710.84 : x - Step 2: Convert to fraction form
814,170.18/1,123,689.40 = 451,710.84/x - Step 3: Cross multiply
814,170.18x = 1,123,689.40 × 451,710.84 - Step 4: Simplify right side
814,170.18x = 507,582,682,773.10 - Step 5: Solve for x
x = 507,582,682,773.10/814,170.18 - Step 6: Final answer
x = 623,435.61
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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.