Finding the Fourth Proportional to 1,438,337.64, 2,158,831.68 and 728,868.36
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Solution
The fourth proportional to 1,438,337.64, 2,158,831.68 and 728,868.36 is: 1,093,974.09
Step by Step Solution
- Step 1: Write the proportion equation
1,438,337.64 : 2,158,831.68 = 728,868.36 : x - Step 2: Convert to fraction form
1,438,337.64/2,158,831.68 = 728,868.36/x - Step 3: Cross multiply
1,438,337.64x = 2,158,831.68 × 728,868.36 - Step 4: Simplify right side
1,438,337.64x = 1,573,504,106,117.64 - Step 5: Solve for x
x = 1,573,504,106,117.64/1,438,337.64 - Step 6: Final answer
x = 1,093,974.09
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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.