Finding the Fourth Proportional to 1,073,169.20, 1,609,948.20 and 539,346.80
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Solution
The fourth proportional to 1,073,169.20, 1,609,948.20 and 539,346.80 is: 809,117.90
Step by Step Solution
- Step 1: Write the proportion equation
1,073,169.20 : 1,609,948.20 = 539,346.80 : x - Step 2: Convert to fraction form
1,073,169.20/1,609,948.20 = 539,346.80/x - Step 3: Cross multiply
1,073,169.20x = 1,609,948.20 × 539,346.80 - Step 4: Simplify right side
1,073,169.20x = 868,320,409,835.76 - Step 5: Solve for x
x = 868,320,409,835.76/1,073,169.20 - Step 6: Final answer
x = 809,117.90
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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.