Finding the Fourth Proportional to 540,437.80, 809,490.30 and 447,125.80
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Solution
The fourth proportional to 540,437.80, 809,490.30 and 447,125.80 is: 669,723.69
Step by Step Solution
- Step 1: Write the proportion equation
540,437.80 : 809,490.30 = 447,125.80 : x - Step 2: Convert to fraction form
540,437.80/809,490.30 = 447,125.80/x - Step 3: Cross multiply
540,437.80x = 809,490.30 × 447,125.80 - Step 4: Simplify right side
540,437.80x = 361,943,997,979.74 - Step 5: Solve for x
x = 361,943,997,979.74/540,437.80 - Step 6: Final answer
x = 669,723.69
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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.