Finding the Fourth Proportional to 522,331.80, 783,719.16 and 285,397.68
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Solution
The fourth proportional to 522,331.80, 783,719.16 and 285,397.68 is: 428,217.52
Step by Step Solution
- Step 1: Write the proportion equation
522,331.80 : 783,719.16 = 285,397.68 : x - Step 2: Convert to fraction form
522,331.80/783,719.16 = 285,397.68/x - Step 3: Cross multiply
522,331.80x = 783,719.16 × 285,397.68 - Step 4: Simplify right side
522,331.80x = 223,671,630,035.55 - Step 5: Solve for x
x = 223,671,630,035.55/522,331.80 - Step 6: Final answer
x = 428,217.52
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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.