Finding the Fourth Proportional to 905,974.20, 1,358,961.30 and 344,935.80
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Solution
The fourth proportional to 905,974.20, 1,358,961.30 and 344,935.80 is: 517,403.70
Step by Step Solution
- Step 1: Write the proportion equation
905,974.20 : 1,358,961.30 = 344,935.80 : x - Step 2: Convert to fraction form
905,974.20/1,358,961.30 = 344,935.80/x - Step 3: Cross multiply
905,974.20x = 1,358,961.30 × 344,935.80 - Step 4: Simplify right side
905,974.20x = 468,754,403,184.54 - Step 5: Solve for x
x = 468,754,403,184.54/905,974.20 - Step 6: Final answer
x = 517,403.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.