Finding the Fourth Proportional to 1,212,929.70, 1,819,394.55 and 740,537.70
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Solution
The fourth proportional to 1,212,929.70, 1,819,394.55 and 740,537.70 is: 1,110,806.55
Step by Step Solution
- Step 1: Write the proportion equation
1,212,929.70 : 1,819,394.55 = 740,537.70 : x - Step 2: Convert to fraction form
1,212,929.70/1,819,394.55 = 740,537.70/x - Step 3: Cross multiply
1,212,929.70x = 1,819,394.55 × 740,537.70 - Step 4: Simplify right side
1,212,929.70x = 1,347,330,255,449.53 - Step 5: Solve for x
x = 1,347,330,255,449.53/1,212,929.70 - Step 6: Final answer
x = 1,110,806.55
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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.