Finding the Fourth Proportional to 991,576.63, 1,368,390.50 and 538,867.99
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Solution
The fourth proportional to 991,576.63, 1,368,390.50 and 538,867.99 is: 743,645.84
Step by Step Solution
- Step 1: Write the proportion equation
991,576.63 : 1,368,390.50 = 538,867.99 : x - Step 2: Convert to fraction form
991,576.63/1,368,390.50 = 538,867.99/x - Step 3: Cross multiply
991,576.63x = 1,368,390.50 × 538,867.99 - Step 4: Simplify right side
991,576.63x = 737,381,838,270.10 - Step 5: Solve for x
x = 737,381,838,270.10/991,576.63 - Step 6: Final answer
x = 743,645.84
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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.