Finding the Fourth Proportional to 413,220.60, 618,794.10 and 272,215.80
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Solution
The fourth proportional to 413,220.60, 618,794.10 and 272,215.80 is: 407,640.69
Step by Step Solution
- Step 1: Write the proportion equation
413,220.60 : 618,794.10 = 272,215.80 : x - Step 2: Convert to fraction form
413,220.60/618,794.10 = 272,215.80/x - Step 3: Cross multiply
413,220.60x = 618,794.10 × 272,215.80 - Step 4: Simplify right side
413,220.60x = 168,445,530,966.78 - Step 5: Solve for x
x = 168,445,530,966.78/413,220.60 - Step 6: Final answer
x = 407,640.69
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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.