Finding the Fourth Proportional to 513,782.80, 770,674.20 and 470,237.20
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Solution
The fourth proportional to 513,782.80, 770,674.20 and 470,237.20 is: 705,355.80
Step by Step Solution
- Step 1: Write the proportion equation
513,782.80 : 770,674.20 = 470,237.20 : x - Step 2: Convert to fraction form
513,782.80/770,674.20 = 470,237.20/x - Step 3: Cross multiply
513,782.80x = 770,674.20 × 470,237.20 - Step 4: Simplify right side
513,782.80x = 362,399,677,920.24 - Step 5: Solve for x
x = 362,399,677,920.24/513,782.80 - Step 6: Final answer
x = 705,355.80
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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.