Finding the Fourth Proportional to 649,623.40, 974,435.10 and 471,293.80
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Solution
The fourth proportional to 649,623.40, 974,435.10 and 471,293.80 is: 706,940.70
Step by Step Solution
- Step 1: Write the proportion equation
649,623.40 : 974,435.10 = 471,293.80 : x - Step 2: Convert to fraction form
649,623.40/974,435.10 = 471,293.80/x - Step 3: Cross multiply
649,623.40x = 974,435.10 × 471,293.80 - Step 4: Simplify right side
649,623.40x = 459,245,221,132.38 - Step 5: Solve for x
x = 459,245,221,132.38/649,623.40 - Step 6: Final answer
x = 706,940.70
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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.