Finding the Fourth Proportional to 1,660,478.47, 2,291,155.88 and 935,170.85
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Solution
The fourth proportional to 1,660,478.47, 2,291,155.88 and 935,170.85 is: 1,290,364.33
Step by Step Solution
- Step 1: Write the proportion equation
1,660,478.47 : 2,291,155.88 = 935,170.85 : x - Step 2: Convert to fraction form
1,660,478.47/2,291,155.88 = 935,170.85/x - Step 3: Cross multiply
1,660,478.47x = 2,291,155.88 × 935,170.85 - Step 4: Simplify right side
1,660,478.47x = 2,142,622,192,834.13 - Step 5: Solve for x
x = 2,142,622,192,834.13/1,660,478.47 - Step 6: Final answer
x = 1,290,364.33
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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.