Finding the Fourth Proportional to 442,905.70, 664,358.55 and 307,603.30
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Solution
The fourth proportional to 442,905.70, 664,358.55 and 307,603.30 is: 461,404.95
Step by Step Solution
- Step 1: Write the proportion equation
442,905.70 : 664,358.55 = 307,603.30 : x - Step 2: Convert to fraction form
442,905.70/664,358.55 = 307,603.30/x - Step 3: Cross multiply
442,905.70x = 664,358.55 × 307,603.30 - Step 4: Simplify right side
442,905.70x = 204,358,882,363.22 - Step 5: Solve for x
x = 204,358,882,363.22/442,905.70 - Step 6: Final answer
x = 461,404.95
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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.