Finding the Fourth Proportional to 1,137,666.55, 1,706,188.78 and 427,639.99
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Solution
The fourth proportional to 1,137,666.55, 1,706,188.78 and 427,639.99 is: 641,343.07
Step by Step Solution
- Step 1: Write the proportion equation
1,137,666.55 : 1,706,188.78 = 427,639.99 : x - Step 2: Convert to fraction form
1,137,666.55/1,706,188.78 = 427,639.99/x - Step 3: Cross multiply
1,137,666.55x = 1,706,188.78 × 427,639.99 - Step 4: Simplify right side
1,137,666.55x = 729,634,552,817.31 - Step 5: Solve for x
x = 729,634,552,817.31/1,137,666.55 - Step 6: Final answer
x = 641,343.07
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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.