Finding the Fourth Proportional to 649,622.40, 974,433.60 and 471,292.80
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Solution
The fourth proportional to 649,622.40, 974,433.60 and 471,292.80 is: 706,939.20
Step by Step Solution
- Step 1: Write the proportion equation
649,622.40 : 974,433.60 = 471,292.80 : x - Step 2: Convert to fraction form
649,622.40/974,433.60 = 471,292.80/x - Step 3: Cross multiply
649,622.40x = 974,433.60 × 471,292.80 - Step 4: Simplify right side
649,622.40x = 459,243,539,758.08 - Step 5: Solve for x
x = 459,243,539,758.08/649,622.40 - Step 6: Final answer
x = 706,939.20
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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.