Finding the Fourth Proportional to 1,318,839.71, 1,977,982.67 and 371,988.99
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Solution
The fourth proportional to 1,318,839.71, 1,977,982.67 and 371,988.99 is: 557,905.39
Step by Step Solution
- Step 1: Write the proportion equation
1,318,839.71 : 1,977,982.67 = 371,988.99 : x - Step 2: Convert to fraction form
1,318,839.71/1,977,982.67 = 371,988.99/x - Step 3: Cross multiply
1,318,839.71x = 1,977,982.67 × 371,988.99 - Step 4: Simplify right side
1,318,839.71x = 735,787,776,580.78 - Step 5: Solve for x
x = 735,787,776,580.78/1,318,839.71 - Step 6: Final answer
x = 557,905.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.