Finding the Fourth Proportional to 1,213,148.20, 1,819,955.58 and 465,135.88
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Solution
The fourth proportional to 1,213,148.20, 1,819,955.58 and 465,135.88 is: 697,793.26
Step by Step Solution
- Step 1: Write the proportion equation
1,213,148.20 : 1,819,955.58 = 465,135.88 : x - Step 2: Convert to fraction form
1,213,148.20/1,819,955.58 = 465,135.88/x - Step 3: Cross multiply
1,213,148.20x = 1,819,955.58 × 465,135.88 - Step 4: Simplify right side
1,213,148.20x = 846,526,640,264.21 - Step 5: Solve for x
x = 846,526,640,264.21/1,213,148.20 - Step 6: Final answer
x = 697,793.26
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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.