Finding the Fourth Proportional to 717,285.56, 989,556.99 and 426,838.97
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Solution
The fourth proportional to 717,285.56, 989,556.99 and 426,838.97 is: 588,860.99
Step by Step Solution
- Step 1: Write the proportion equation
717,285.56 : 989,556.99 = 426,838.97 : x - Step 2: Convert to fraction form
717,285.56/989,556.99 = 426,838.97/x - Step 3: Cross multiply
717,285.56x = 989,556.99 × 426,838.97 - Step 4: Simplify right side
717,285.56x = 422,381,481,420.12 - Step 5: Solve for x
x = 422,381,481,420.12/717,285.56 - Step 6: Final answer
x = 588,860.99
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1.5x scale
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.