Finding the Fourth Proportional to 513,507.60, 768,511.80 and 513,507.60
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Solution
The fourth proportional to 513,507.60, 768,511.80 and 513,507.60 is: 768,511.80
Step by Step Solution
- Step 1: Write the proportion equation
513,507.60 : 768,511.80 = 513,507.60 : x - Step 2: Convert to fraction form
513,507.60/768,511.80 = 513,507.60/x - Step 3: Cross multiply
513,507.60x = 768,511.80 × 513,507.60 - Step 4: Simplify right side
513,507.60x = 394,636,649,989.68 - Step 5: Solve for x
x = 394,636,649,989.68/513,507.60 - Step 6: Final answer
x = 768,511.80
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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.