Finding the Fourth Proportional to 522,491.76, 785,509.26 and 417,220.52
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Solution
The fourth proportional to 522,491.76, 785,509.26 and 417,220.52 is: 627,245.45
Step by Step Solution
- Step 1: Write the proportion equation
522,491.76 : 785,509.26 = 417,220.52 : x - Step 2: Convert to fraction form
522,491.76/785,509.26 = 417,220.52/x - Step 3: Cross multiply
522,491.76x = 785,509.26 × 417,220.52 - Step 4: Simplify right side
522,491.76x = 327,730,577,994.47 - Step 5: Solve for x
x = 327,730,577,994.47/522,491.76 - Step 6: Final answer
x = 627,245.45
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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.