Finding the Fourth Proportional to 1,170,423.75, 1,615,184.82 and 633,879.75
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Solution
The fourth proportional to 1,170,423.75, 1,615,184.82 and 633,879.75 is: 874,754.08
Step by Step Solution
- Step 1: Write the proportion equation
1,170,423.75 : 1,615,184.82 = 633,879.75 : x - Step 2: Convert to fraction form
1,170,423.75/1,615,184.82 = 633,879.75/x - Step 3: Cross multiply
1,170,423.75x = 1,615,184.82 × 633,879.75 - Step 4: Simplify right side
1,170,423.75x = 1,023,832,949,905.40 - Step 5: Solve for x
x = 1,023,832,949,905.40/1,170,423.75 - Step 6: Final answer
x = 874,754.08
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.