Finding the Fourth Proportional to 960,640.80, 1,440,990.36 and 329,545.68
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Solution
The fourth proportional to 960,640.80, 1,440,990.36 and 329,545.68 is: 494,328.52
Step by Step Solution
- Step 1: Write the proportion equation
960,640.80 : 1,440,990.36 = 329,545.68 : x - Step 2: Convert to fraction form
960,640.80/1,440,990.36 = 329,545.68/x - Step 3: Cross multiply
960,640.80x = 1,440,990.36 × 329,545.68 - Step 4: Simplify right side
960,640.80x = 474,872,148,059.65 - Step 5: Solve for x
x = 474,872,148,059.65/960,640.80 - Step 6: Final answer
x = 494,328.52
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1.5x scale
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.