Finding the Fourth Proportional to 486,905.80, 730,358.70 and 276,953.80
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Solution
The fourth proportional to 486,905.80, 730,358.70 and 276,953.80 is: 415,430.70
Step by Step Solution
- Step 1: Write the proportion equation
486,905.80 : 730,358.70 = 276,953.80 : x - Step 2: Convert to fraction form
486,905.80/730,358.70 = 276,953.80/x - Step 3: Cross multiply
486,905.80x = 730,358.70 × 276,953.80 - Step 4: Simplify right side
486,905.80x = 202,275,617,328.06 - Step 5: Solve for x
x = 202,275,617,328.06/486,905.80 - Step 6: Final answer
x = 415,430.70
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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.