Finding the Fourth Proportional to 2,109,034.21, 3,163,555.95 and 762,148.05
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Solution
The fourth proportional to 2,109,034.21, 3,163,555.95 and 762,148.05 is: 1,143,223.75
Step by Step Solution
- Step 1: Write the proportion equation
2,109,034.21 : 3,163,555.95 = 762,148.05 : x - Step 2: Convert to fraction form
2,109,034.21/3,163,555.95 = 762,148.05/x - Step 3: Cross multiply
2,109,034.21x = 3,163,555.95 × 762,148.05 - Step 4: Simplify right side
2,109,034.21x = 2,411,097,998,358.40 - Step 5: Solve for x
x = 2,411,097,998,358.40/2,109,034.21 - Step 6: Final answer
x = 1,143,223.75
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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.