Finding the Fourth Proportional to 1,328,168.11, 1,991,560.42 and 474,910.87
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Solution
The fourth proportional to 1,328,168.11, 1,991,560.42 and 474,910.87 is: 712,118.95
Step by Step Solution
- Step 1: Write the proportion equation
1,328,168.11 : 1,991,560.42 = 474,910.87 : x - Step 2: Convert to fraction form
1,328,168.11/1,991,560.42 = 474,910.87/x - Step 3: Cross multiply
1,328,168.11x = 1,991,560.42 × 474,910.87 - Step 4: Simplify right side
1,328,168.11x = 945,813,679,387.41 - Step 5: Solve for x
x = 945,813,679,387.41/1,328,168.11 - Step 6: Final answer
x = 712,118.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.