Finding the Fourth Proportional to 539,077.80, 809,272.80 and 272,701.20
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Solution
The fourth proportional to 539,077.80, 809,272.80 and 272,701.20 is: 409,383.70
Step by Step Solution
- Step 1: Write the proportion equation
539,077.80 : 809,272.80 = 272,701.20 : x - Step 2: Convert to fraction form
539,077.80/809,272.80 = 272,701.20/x - Step 3: Cross multiply
539,077.80x = 809,272.80 × 272,701.20 - Step 4: Simplify right side
539,077.80x = 220,689,663,687.36 - Step 5: Solve for x
x = 220,689,663,687.36/539,077.80 - Step 6: Final answer
x = 409,383.70
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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.