Finding the Fourth Proportional to 649,811.20, 974,716.80 and 176,555.20
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Solution
The fourth proportional to 649,811.20, 974,716.80 and 176,555.20 is: 264,832.80
Step by Step Solution
- Step 1: Write the proportion equation
649,811.20 : 974,716.80 = 176,555.20 : x - Step 2: Convert to fraction form
649,811.20/974,716.80 = 176,555.20/x - Step 3: Cross multiply
649,811.20x = 974,716.80 × 176,555.20 - Step 4: Simplify right side
649,811.20x = 172,091,319,567.36 - Step 5: Solve for x
x = 172,091,319,567.36/649,811.20 - Step 6: Final answer
x = 264,832.80
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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.