Finding the Fourth Proportional to 710,523.70, 1,065,785.55 and 512,235.70
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Solution
The fourth proportional to 710,523.70, 1,065,785.55 and 512,235.70 is: 768,353.55
Step by Step Solution
- Step 1: Write the proportion equation
710,523.70 : 1,065,785.55 = 512,235.70 : x - Step 2: Convert to fraction form
710,523.70/1,065,785.55 = 512,235.70/x - Step 3: Cross multiply
710,523.70x = 1,065,785.55 × 512,235.70 - Step 4: Simplify right side
710,523.70x = 545,933,407,254.14 - Step 5: Solve for x
x = 545,933,407,254.14/710,523.70 - Step 6: Final answer
x = 768,353.55
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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.