Finding the Fourth Proportional to 2,123,294.40, 2,930,041.68 and 1,205,403.09
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Solution
The fourth proportional to 2,123,294.40, 2,930,041.68 and 1,205,403.09 is: 1,663,396.89
Step by Step Solution
- Step 1: Write the proportion equation
2,123,294.40 : 2,930,041.68 = 1,205,403.09 : x - Step 2: Convert to fraction form
2,123,294.40/2,930,041.68 = 1,205,403.09/x - Step 3: Cross multiply
2,123,294.40x = 2,930,041.68 × 1,205,403.09 - Step 4: Simplify right side
2,123,294.40x = 3,531,881,307,505.30 - Step 5: Solve for x
x = 3,531,881,307,505.30/2,123,294.40 - Step 6: Final answer
x = 1,663,396.89
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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.