Finding the Fourth Proportional to 513,859.80, 770,789.70 and 134,779.80
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Solution
The fourth proportional to 513,859.80, 770,789.70 and 134,779.80 is: 202,169.70
Step by Step Solution
- Step 1: Write the proportion equation
513,859.80 : 770,789.70 = 134,779.80 : x - Step 2: Convert to fraction form
513,859.80/770,789.70 = 134,779.80/x - Step 3: Cross multiply
513,859.80x = 770,789.70 × 134,779.80 - Step 4: Simplify right side
513,859.80x = 103,886,881,608.06 - Step 5: Solve for x
x = 103,886,881,608.06/513,859.80 - Step 6: Final answer
x = 202,169.70
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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.