Finding the Fourth Proportional to 513,915.13, 709,194.28 and 284,467.49
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Solution
The fourth proportional to 513,915.13, 709,194.28 and 284,467.49 is: 392,560.38
Step by Step Solution
- Step 1: Write the proportion equation
513,915.13 : 709,194.28 = 284,467.49 : x - Step 2: Convert to fraction form
513,915.13/709,194.28 = 284,467.49/x - Step 3: Cross multiply
513,915.13x = 709,194.28 × 284,467.49 - Step 4: Simplify right side
513,915.13x = 201,742,716,753.96 - Step 5: Solve for x
x = 201,742,716,753.96/513,915.13 - Step 6: Final answer
x = 392,560.38
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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.