Finding the Fourth Proportional to 998,658.56, 1,378,232.79 and 611,472.08
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Solution
The fourth proportional to 998,658.56, 1,378,232.79 and 611,472.08 is: 843,882.89
Step by Step Solution
- Step 1: Write the proportion equation
998,658.56 : 1,378,232.79 = 611,472.08 : x - Step 2: Convert to fraction form
998,658.56/1,378,232.79 = 611,472.08/x - Step 3: Cross multiply
998,658.56x = 1,378,232.79 × 611,472.08 - Step 4: Simplify right side
998,658.56x = 842,750,874,271.09 - Step 5: Solve for x
x = 842,750,874,271.09/998,658.56 - Step 6: Final answer
x = 843,882.89
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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.