Finding the Fourth Proportional to 1,405,886.15, 2,107,409.40 and 553,556.03
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Solution
The fourth proportional to 1,405,886.15, 2,107,409.40 and 553,556.03 is: 829,774.99
Step by Step Solution
- Step 1: Write the proportion equation
1,405,886.15 : 2,107,409.40 = 553,556.03 : x - Step 2: Convert to fraction form
1,405,886.15/2,107,409.40 = 553,556.03/x - Step 3: Cross multiply
1,405,886.15x = 2,107,409.40 × 553,556.03 - Step 4: Simplify right side
1,405,886.15x = 1,166,569,170,511.64 - Step 5: Solve for x
x = 1,166,569,170,511.64/1,405,886.15 - Step 6: Final answer
x = 829,774.99
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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.