Finding the Fourth Proportional to 921,361.12, 1,271,422.41 and 507,879.79
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Solution
The fourth proportional to 921,361.12, 1,271,422.41 and 507,879.79 is: 700,843.28
Step by Step Solution
- Step 1: Write the proportion equation
921,361.12 : 1,271,422.41 = 507,879.79 : x - Step 2: Convert to fraction form
921,361.12/1,271,422.41 = 507,879.79/x - Step 3: Cross multiply
921,361.12x = 1,271,422.41 × 507,879.79 - Step 4: Simplify right side
921,361.12x = 645,729,746,592.09 - Step 5: Solve for x
x = 645,729,746,592.09/921,361.12 - Step 6: Final answer
x = 700,843.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.