Finding the Fourth Proportional to 957,865.23, 1,438,424.81 and 640,059.05
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Solution
The fourth proportional to 957,865.23, 1,438,424.81 and 640,059.05 is: 961,175.74
Step by Step Solution
- Step 1: Write the proportion equation
957,865.23 : 1,438,424.81 = 640,059.05 : x - Step 2: Convert to fraction form
957,865.23/1,438,424.81 = 640,059.05/x - Step 3: Cross multiply
957,865.23x = 1,438,424.81 × 640,059.05 - Step 4: Simplify right side
957,865.23x = 920,676,817,385.03 - Step 5: Solve for x
x = 920,676,817,385.03/957,865.23 - Step 6: Final answer
x = 961,175.74
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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.