Finding the Fourth Proportional to 1,989,975, 2,746,239.66 and 1,130,680.80
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Solution
The fourth proportional to 1,989,975, 2,746,239.66 and 1,130,680.80 is: 1,560,381.64
Step by Step Solution
- Step 1: Write the proportion equation
1,989,975 : 2,746,239.66 = 1,130,680.80 : x - Step 2: Convert to fraction form
1,989,975/2,746,239.66 = 1,130,680.80/x - Step 3: Cross multiply
1,989,975x = 2,746,239.66 × 1,130,680.80 - Step 4: Simplify right side
1,989,975x = 3,105,120,455,760.53 - Step 5: Solve for x
x = 3,105,120,455,760.53/1,989,975 - Step 6: Final answer
x = 1,560,381.64
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.