Finding the Fourth Proportional to 1,128,032.65, 1,556,687.63 and 644,596.63
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Solution
The fourth proportional to 1,128,032.65, 1,556,687.63 and 644,596.63 is: 889,544.82
Step by Step Solution
- Step 1: Write the proportion equation
1,128,032.65 : 1,556,687.63 = 644,596.63 : x - Step 2: Convert to fraction form
1,128,032.65/1,556,687.63 = 644,596.63/x - Step 3: Cross multiply
1,128,032.65x = 1,556,687.63 × 644,596.63 - Step 4: Simplify right side
1,128,032.65x = 1,003,435,600,260.69 - Step 5: Solve for x
x = 1,003,435,600,260.69/1,128,032.65 - Step 6: Final answer
x = 889,544.82
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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.