Finding the Fourth Proportional to 1,291,564.44, 1,937,419.47 and 393,035.40
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Solution
The fourth proportional to 1,291,564.44, 1,937,419.47 and 393,035.40 is: 589,575.26
Step by Step Solution
- Step 1: Write the proportion equation
1,291,564.44 : 1,937,419.47 = 393,035.40 : x - Step 2: Convert to fraction form
1,291,564.44/1,937,419.47 = 393,035.40/x - Step 3: Cross multiply
1,291,564.44x = 1,937,419.47 × 393,035.40 - Step 4: Simplify right side
1,291,564.44x = 761,474,436,359.24 - Step 5: Solve for x
x = 761,474,436,359.24/1,291,564.44 - Step 6: Final answer
x = 589,575.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.