Finding the Fourth Proportional to 519,768.57, 717,272.91 and 290,329.05
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Solution
The fourth proportional to 519,768.57, 717,272.91 and 290,329.05 is: 400,649.78
Step by Step Solution
- Step 1: Write the proportion equation
519,768.57 : 717,272.91 = 290,329.05 : x - Step 2: Convert to fraction form
519,768.57/717,272.91 = 290,329.05/x - Step 3: Cross multiply
519,768.57x = 717,272.91 × 290,329.05 - Step 4: Simplify right side
519,768.57x = 208,245,162,551.04 - Step 5: Solve for x
x = 208,245,162,551.04/519,768.57 - Step 6: Final answer
x = 400,649.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.