Finding the Fourth Proportional to 539,490.80, 809,122.80 and 273,000.80
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Solution
The fourth proportional to 539,490.80, 809,122.80 and 273,000.80 is: 409,443.82
Step by Step Solution
- Step 1: Write the proportion equation
539,490.80 : 809,122.80 = 273,000.80 : x - Step 2: Convert to fraction form
539,490.80/809,122.80 = 273,000.80/x - Step 3: Cross multiply
539,490.80x = 809,122.80 × 273,000.80 - Step 4: Simplify right side
539,490.80x = 220,891,171,698.24 - Step 5: Solve for x
x = 220,891,171,698.24/539,490.80 - Step 6: Final answer
x = 409,443.82
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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.