Finding the Fourth Proportional to 898,745.22, 1,239,883.20 and 516,690.90
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Solution
The fourth proportional to 898,745.22, 1,239,883.20 and 516,690.90 is: 712,811.99
Step by Step Solution
- Step 1: Write the proportion equation
898,745.22 : 1,239,883.20 = 516,690.90 : x - Step 2: Convert to fraction form
898,745.22/1,239,883.20 = 516,690.90/x - Step 3: Cross multiply
898,745.22x = 1,239,883.20 × 516,690.90 - Step 4: Simplify right side
898,745.22x = 640,636,366,502.88 - Step 5: Solve for x
x = 640,636,366,502.88/898,745.22 - Step 6: Final answer
x = 712,811.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.