Finding the Fourth Proportional to 696,043.20, 1,044,064.80 and 471,511.20
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Solution
The fourth proportional to 696,043.20, 1,044,064.80 and 471,511.20 is: 707,266.80
Step by Step Solution
- Step 1: Write the proportion equation
696,043.20 : 1,044,064.80 = 471,511.20 : x - Step 2: Convert to fraction form
696,043.20/1,044,064.80 = 471,511.20/x - Step 3: Cross multiply
696,043.20x = 1,044,064.80 × 471,511.20 - Step 4: Simplify right side
696,043.20x = 492,288,246,725.76 - Step 5: Solve for x
x = 492,288,246,725.76/696,043.20 - Step 6: Final answer
x = 707,266.80
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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.