Finding the Fourth Proportional to 912,728.41, 1,368,801.46 and 313,545.09
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Solution
The fourth proportional to 912,728.41, 1,368,801.46 and 313,545.09 is: 470,217.62
Step by Step Solution
- Step 1: Write the proportion equation
912,728.41 : 1,368,801.46 = 313,545.09 : x - Step 2: Convert to fraction form
912,728.41/1,368,801.46 = 313,545.09/x - Step 3: Cross multiply
912,728.41x = 1,368,801.46 × 313,545.09 - Step 4: Simplify right side
912,728.41x = 429,180,976,967.83 - Step 5: Solve for x
x = 429,180,976,967.83/912,728.41 - Step 6: Final answer
x = 470,217.62
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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.