Finding the Fourth Proportional to 539,351.40, 809,318.70 and 239,878.20
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Solution
The fourth proportional to 539,351.40, 809,318.70 and 239,878.20 is: 359,946.99
Step by Step Solution
- Step 1: Write the proportion equation
539,351.40 : 809,318.70 = 239,878.20 : x - Step 2: Convert to fraction form
539,351.40/809,318.70 = 239,878.20/x - Step 3: Cross multiply
539,351.40x = 809,318.70 × 239,878.20 - Step 4: Simplify right side
539,351.40x = 194,137,912,982.34 - Step 5: Solve for x
x = 194,137,912,982.34/539,351.40 - Step 6: Final answer
x = 359,946.99
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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.