Finding the Fourth Proportional to 2,130,272.75, 3,195,474.74 and 931,578.05
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Solution
The fourth proportional to 2,130,272.75, 3,195,474.74 and 931,578.05 is: 1,397,395.77
Step by Step Solution
- Step 1: Write the proportion equation
2,130,272.75 : 3,195,474.74 = 931,578.05 : x - Step 2: Convert to fraction form
2,130,272.75/3,195,474.74 = 931,578.05/x - Step 3: Cross multiply
2,130,272.75x = 3,195,474.74 × 931,578.05 - Step 4: Simplify right side
2,130,272.75x = 2,976,834,127,113.46 - Step 5: Solve for x
x = 2,976,834,127,113.46/2,130,272.75 - Step 6: Final answer
x = 1,397,395.77
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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.