Finding the Fourth Proportional to 769,822.18, 1,062,311.68 and 425,637.42
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Solution
The fourth proportional to 769,822.18, 1,062,311.68 and 425,637.42 is: 587,355.90
Step by Step Solution
- Step 1: Write the proportion equation
769,822.18 : 1,062,311.68 = 425,637.42 : x - Step 2: Convert to fraction form
769,822.18/1,062,311.68 = 425,637.42/x - Step 3: Cross multiply
769,822.18x = 1,062,311.68 × 425,637.42 - Step 4: Simplify right side
769,822.18x = 452,159,602,711.07 - Step 5: Solve for x
x = 452,159,602,711.07/769,822.18 - Step 6: Final answer
x = 587,355.90
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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.