Finding the Fourth Proportional to 767,163.20, 1,151,263.20 and 430,203.20
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Solution
The fourth proportional to 767,163.20, 1,151,263.20 and 430,203.20 is: 645,595.50
Step by Step Solution
- Step 1: Write the proportion equation
767,163.20 : 1,151,263.20 = 430,203.20 : x - Step 2: Convert to fraction form
767,163.20/1,151,263.20 = 430,203.20/x - Step 3: Cross multiply
767,163.20x = 1,151,263.20 × 430,203.20 - Step 4: Simplify right side
767,163.20x = 495,277,112,682.24 - Step 5: Solve for x
x = 495,277,112,682.24/767,163.20 - Step 6: Final answer
x = 645,595.50
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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.