Finding the Fourth Proportional to 540,430.80, 809,479.80 and 447,118.80
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Solution
The fourth proportional to 540,430.80, 809,479.80 and 447,118.80 is: 669,713.19
Step by Step Solution
- Step 1: Write the proportion equation
540,430.80 : 809,479.80 = 447,118.80 : x - Step 2: Convert to fraction form
540,430.80/809,479.80 = 447,118.80/x - Step 3: Cross multiply
540,430.80x = 809,479.80 × 447,118.80 - Step 4: Simplify right side
540,430.80x = 361,933,636,800.24 - Step 5: Solve for x
x = 361,933,636,800.24/540,430.80 - Step 6: Final answer
x = 669,713.19
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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.