Finding the Fourth Proportional to 1,405,329.98, 2,107,679.47 and 646,442.60
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Solution
The fourth proportional to 1,405,329.98, 2,107,679.47 and 646,442.60 is: 969,518.77
Step by Step Solution
- Step 1: Write the proportion equation
1,405,329.98 : 2,107,679.47 = 646,442.60 : x - Step 2: Convert to fraction form
1,405,329.98/2,107,679.47 = 646,442.60/x - Step 3: Cross multiply
1,405,329.98x = 2,107,679.47 × 646,442.60 - Step 4: Simplify right side
1,405,329.98x = 1,362,493,784,398.92 - Step 5: Solve for x
x = 1,362,493,784,398.92/1,405,329.98 - Step 6: Final answer
x = 969,518.77
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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.