Finding the Fourth Proportional to 1,339,840.21, 1,848,986.34 and 727,994.53
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Solution
The fourth proportional to 1,339,840.21, 1,848,986.34 and 727,994.53 is: 1,004,636.17
Step by Step Solution
- Step 1: Write the proportion equation
1,339,840.21 : 1,848,986.34 = 727,994.53 : x - Step 2: Convert to fraction form
1,339,840.21/1,848,986.34 = 727,994.53/x - Step 3: Cross multiply
1,339,840.21x = 1,848,986.34 × 727,994.53 - Step 4: Simplify right side
1,339,840.21x = 1,346,051,941,564.72 - Step 5: Solve for x
x = 1,346,051,941,564.72/1,339,840.21 - Step 6: Final answer
x = 1,004,636.17
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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.