Finding the Fourth Proportional to 513,919.36, 770,823.64 and 134,878.09
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Solution
The fourth proportional to 513,919.36, 770,823.64 and 134,878.09 is: 202,302.60
Step by Step Solution
- Step 1: Write the proportion equation
513,919.36 : 770,823.64 = 134,878.09 : x - Step 2: Convert to fraction form
513,919.36/770,823.64 = 134,878.09/x - Step 3: Cross multiply
513,919.36x = 770,823.64 × 134,878.09 - Step 4: Simplify right side
513,919.36x = 103,967,220,290.05 - Step 5: Solve for x
x = 103,967,220,290.05/513,919.36 - Step 6: Final answer
x = 202,302.60
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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.