Finding the Fourth Proportional to 447,508.62, 670,377.09 and 391,412.07
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Solution
The fourth proportional to 447,508.62, 670,377.09 and 391,412.07 is: 586,343.31
Step by Step Solution
- Step 1: Write the proportion equation
447,508.62 : 670,377.09 = 391,412.07 : x - Step 2: Convert to fraction form
447,508.62/670,377.09 = 391,412.07/x - Step 3: Cross multiply
447,508.62x = 670,377.09 × 391,412.07 - Step 4: Simplify right side
447,508.62x = 262,393,684,477.48 - Step 5: Solve for x
x = 262,393,684,477.48/447,508.62 - Step 6: Final answer
x = 586,343.31
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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.