Finding the Fourth Proportional to 513,469.23, 708,533.02 and 283,990.05
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Solution
The fourth proportional to 513,469.23, 708,533.02 and 283,990.05 is: 391,876.12
Step by Step Solution
- Step 1: Write the proportion equation
513,469.23 : 708,533.02 = 283,990.05 : x - Step 2: Convert to fraction form
513,469.23/708,533.02 = 283,990.05/x - Step 3: Cross multiply
513,469.23x = 708,533.02 × 283,990.05 - Step 4: Simplify right side
513,469.23x = 201,216,328,131.44 - Step 5: Solve for x
x = 201,216,328,131.44/513,469.23 - Step 6: Final answer
x = 391,876.12
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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.