Finding the Fourth Proportional to 960,084.19, 1,440,121.05 and 391,463.08
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Solution
The fourth proportional to 960,084.19, 1,440,121.05 and 391,463.08 is: 587,192.49
Step by Step Solution
- Step 1: Write the proportion equation
960,084.19 : 1,440,121.05 = 391,463.08 : x - Step 2: Convert to fraction form
960,084.19/1,440,121.05 = 391,463.08/x - Step 3: Cross multiply
960,084.19x = 1,440,121.05 × 391,463.08 - Step 4: Simplify right side
960,084.19x = 563,754,221,805.83 - Step 5: Solve for x
x = 563,754,221,805.83/960,084.19 - Step 6: Final answer
x = 587,192.49
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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.