Finding the Fourth Proportional to 1,971,069.84, 2,720,076.12 and 1,065,651.84
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Solution
The fourth proportional to 1,971,069.84, 2,720,076.12 and 1,065,651.84 is: 1,470,599.40
Step by Step Solution
- Step 1: Write the proportion equation
1,971,069.84 : 2,720,076.12 = 1,065,651.84 : x - Step 2: Convert to fraction form
1,971,069.84/2,720,076.12 = 1,065,651.84/x - Step 3: Cross multiply
1,971,069.84x = 2,720,076.12 × 1,065,651.84 - Step 4: Simplify right side
1,971,069.84x = 2,898,654,122,218.06 - Step 5: Solve for x
x = 2,898,654,122,218.06/1,971,069.84 - Step 6: Final answer
x = 1,470,599.40
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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.