Finding the Fourth Proportional to 751,406.12, 1,127,478.80 and 351,977.84
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Solution
The fourth proportional to 751,406.12, 1,127,478.80 and 351,977.84 is: 528,139.90
Step by Step Solution
- Step 1: Write the proportion equation
751,406.12 : 1,127,478.80 = 351,977.84 : x - Step 2: Convert to fraction form
751,406.12/1,127,478.80 = 351,977.84/x - Step 3: Cross multiply
751,406.12x = 1,127,478.80 × 351,977.84 - Step 4: Simplify right side
751,406.12x = 396,847,552,669.79 - Step 5: Solve for x
x = 396,847,552,669.79/751,406.12 - Step 6: Final answer
x = 528,139.90
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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.