Finding the Fourth Proportional to 1,394,750.40, 1,918,715.58 and 1,221,889.92
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Solution
The fourth proportional to 1,394,750.40, 1,918,715.58 and 1,221,889.92 is: 1,680,916.69
Step by Step Solution
- Step 1: Write the proportion equation
1,394,750.40 : 1,918,715.58 = 1,221,889.92 : x - Step 2: Convert to fraction form
1,394,750.40/1,918,715.58 = 1,221,889.92/x - Step 3: Cross multiply
1,394,750.40x = 1,918,715.58 × 1,221,889.92 - Step 4: Simplify right side
1,394,750.40x = 2,344,459,226,548.95 - Step 5: Solve for x
x = 2,344,459,226,548.95/1,394,750.40 - Step 6: Final answer
x = 1,680,916.69
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.