Finding the Fourth Proportional to 513,800.70, 770,701.05 and 493,133.55
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Solution
The fourth proportional to 513,800.70, 770,701.05 and 493,133.55 is: 739,700.33
Step by Step Solution
- Step 1: Write the proportion equation
513,800.70 : 770,701.05 = 493,133.55 : x - Step 2: Convert to fraction form
513,800.70/770,701.05 = 493,133.55/x - Step 3: Cross multiply
513,800.70x = 770,701.05 × 493,133.55 - Step 4: Simplify right side
513,800.70x = 380,058,544,775.23 - Step 5: Solve for x
x = 380,058,544,775.23/513,800.70 - Step 6: Final answer
x = 739,700.33
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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.