Finding the Fourth Proportional to 1,556,929.80, 2,335,394.70 and 717,121.80
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Solution
The fourth proportional to 1,556,929.80, 2,335,394.70 and 717,121.80 is: 1,075,682.70
Step by Step Solution
- Step 1: Write the proportion equation
1,556,929.80 : 2,335,394.70 = 717,121.80 : x - Step 2: Convert to fraction form
1,556,929.80/2,335,394.70 = 717,121.80/x - Step 3: Cross multiply
1,556,929.80x = 2,335,394.70 × 717,121.80 - Step 4: Simplify right side
1,556,929.80x = 1,674,762,450,974.46 - Step 5: Solve for x
x = 1,674,762,450,974.46/1,556,929.80 - Step 6: Final answer
x = 1,075,682.70
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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.